Angular
+
TypeScript
mario@mariogl.com
Temario
- Introducción a Angular
- Entorno de desarrollo
- Javascript moderno
- Introducción a TypeScript
- Primeros pasos en Angular
- Modelos, componentes y vistas
- Servicios
- Formularios
- Acceso al servidor
- Enrutamiento y navegación
- Despliegue a producción
Introducción a Angular
¿Qué es Angular?
-
Framework JS
-
SPA: Single Page Applications
-
TypeScript
-
Código fuente y código compilado
-
¿Angular 2? ¿6? ¿AngularJS?
Entorno de desarrollo
Entorno de desarrollo
-
IDE: Visual Studio Code
-
NodeJS y npm
Git
Comandos básicos
-
Clonar un repositorio:
git clone URL
-
Descargar última versión del repositorio:
git pull origin master
Configuración proxy
git config --global http.proxy http://username:password@host:port
git config --global https.proxy http://username:password@host:port
Node.js y npm
npm
-
Instalar última versión después de instalar Node.js
(configurar proxy si es necesario) -
Repositorio de módulos distribuibles
-
Módulos globales y módulos locales
-
La carpeta node_modules
-
El archivo package.json:
-
Registro de dependencias
-
Dependencias de desarrollo y de producción
-
Versiones (SEMVER)
-
Comandos npm
-
Instalar un paquete globalmente:
npm install -g paquete -
Instalar un paquete de producción:
npm install paquete -
Instalar un paquete de desarrollo:
npm install paquete --save-dev -
Instalar todas las dependencias:
npm install -
Instalar las dependencias de producción:
npm install --production -
Listar paquetes instalados:
npm list --depth=0 (locales)
npm list -g --depth=0 (globales)
Configuración proxy
npm config set proxy http://username:password@host:port
npm config set https-proxy http://username:password@host:port
JavaScript
JavaScript
-
Interpretado, compilado y ejecutado en el navegador
-
Cada navegador programa su propio motor de JS
-
Estandarización: ECMAScript
-
La versión ES6 o ES2015
-
Transpiladores: Babel, TypeScript
Organización del código JavaScript
-
Ejemplo de uso clásico de JS: utilizar un plugin de jQuery en nuestra web, o implementar alguna interacción con el usuario
-
Pocas líneas de código, todas en un mismo archivo
Organización del código JavaScript
(function($) {
$(document).ready(function() {
// Al hacer clic en una pestaña
$(".tab a").on("click", function(e) {
// Anulamos el link
e.preventDefault();
// Ocultamos todos los bloques de contenido
// y mostramos sólo el que se ha elegido
var content_id = $(this).attr("href");
$(".tab-content").hide();
$(content_id).show();
// Desmarcamos la pestaña que estuviera activa
// y marcamos la clicada como activa
$(".tab.active").removeClass("active");
$(this).closest(".tab").addClass("active");
})
})
})(jQuery);<head>
<meta charset="UTF-8">
<title>Mi web</title>
<script src="vendor/jquery/jquery.min.js"></script>
<script src="js/tabs.js"></script>
</head>
24 líneas
Organización del código JavaScript
<head>
<meta charset="UTF-8">
<title>Mi web</title>
<script src="vendor/jquery/jquery.min.js"></script>
<script src="js/ui.js"></script>
</head>
(function($) {
$(document).ready(function() {
$(document).on('click', '.tab_new', offerGroupSwitchTabs);
$(document).on('click', '.navigationServices-li', jumpTo);
$('.load-more_new').on('click', loadMore).each(function() {
$(this).data('main', $(this).text());
});
})
var loadMore = function(e) {
e.preventDefault();
var $list = $(this).prev('.promos-list_new');
var button_text = $(this).data('main');
var button_alt_text = $(this).data('alt');
if ($(window).width() > 992) {
var hidden_classes = ".hidden";
var $hidden = $list.find(hidden_classes);
var n_show = 3;
} else if ($(window).width() > 768) {
var hidden_classes = ".hidden, .hidden-sm";
var $hidden = $list.find(hidden_classes);
var n_show = 2;
} else {
var hidden_classes = ".hidden, .hidden-sm, .hidden-xs";
var $hidden = $list.find(hidden_classes);
var n_show = 1;
}
if ($hidden.length == 0) {
$list.find(">li:nth-child(2)").addClass('hidden-xs');
$list.find(">li:nth-child(3)").addClass('hidden-xs hidden-sm');
$list.find(">li:nth-child(n+4)").addClass('hidden');
$(this).text(button_text);
} else {
$hidden.slice(0, n_show).each(function () {
$(this).removeClass(hidden_classes.replace(/[\.,\,]/g, ''));
});
if ($list.find(hidden_classes).length == 0) {
$(this).text(button_alt_text);
}
}
}
var offerGroupSwitchTabs = function(e) {
e.preventDefault();
var $info = $(this).closest('.info_new');
var target = $(this).attr('href');
var targetClass = target.replace('#', '.');
$info.find('.active').removeClass('active');
$info.find('[href=' + target + ']').addClass('active');
$(targetClass).addClass('active');
}
var jumpTo = function(e) {
e.preventDefault();
var target = $(this).find('a').attr('href');
var $target = $(target);
var targetTop = $target.offset().top;
$('html, body').animate({
scrollTop: targetTop - 200
}, {
duration: durationOnDistance(targetTop),
complete: function() {
window.location.hash = target;
}
});
}
var durationOnDistance = function(elementTop) {
var distance = elementTop - $(window).scrollTop();
var time = distance * 0.5;
return time;
}
})(jQuery)
75 líneas
Organización del código JavaScript
-
Programar toda la UI de una página
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();
(function() {
var width = window.innerWidth;
var height = window.innerHeight;
var timerID = 0;
var c = document.getElementById('canvas')
var ctx = c.getContext('2d');
c.width = width;
c.height = height;
var speed = 10;
var size = 8;
var boids = [];
var totalBoids = 150;
var init = function(){
for (var i = 0; i < totalBoids; i++) {
boids.push({
x: Math.random() * width,
y: Math.random() * height,
v: {
x: Math.random() * 2 - 1,
y: Math.random() * 2 - 1
},
c: 'rgba(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ', 1.0)'
});
}
setInterval(update, 40);
}
var calculateDistance = function(v1, v2){
x = Math.abs(v1.x - v2.x);
y = Math.abs(v1.y - v2.y);
return Math.sqrt((x * x) + (y * y));
}
var checkWallCollisions = function(index){
if (boids[index].x > width) {
boids[index].x = 0;
}
else
if (boids[index].x < 0) {
boids[index].x = width;
}
if (boids[index].y > height) {
boids[index].y = 0;
}
else
if (boids[index].y < 0) {
boids[index].y = height;
}
}
var addForce = function(index, force){
boids[index].v.x += force.x;
boids[index].v.y += force.y;
magnitude = calculateDistance({
x: 0,
y: 0
}, {
x: boids[index].v.x,
y: boids[index].v.y
});
boids[index].v.x = boids[index].v.x / magnitude;
boids[index].v.y = boids[index].v.y / magnitude;
}
//This should be in multiple functions, but this will
//save tons of looping - Gross!
var applyForces = function(index){
percievedCenter = {
x: 0,
y: 0
};
flockCenter = {
x: 0,
y: 0
};
percievedVelocity = {
x: 0,
y: 0
};
count = 0;
for (var i = 0; i < boids.length; i++) {
if (i != index) {
//Allignment
dist = calculateDistance(boids[index], boids[i]);
//console.log(dist);
if (dist > 0 && dist < 50) {
count++;
//Alignment
percievedCenter.x += boids[i].x;
percievedCenter.y += boids[i].y;
//Cohesion
percievedVelocity.x += boids[i].v.x;
percievedVelocity.y += boids[i].v.y;
//Seperation
if (calculateDistance(boids[i], boids[index]) < 12) {
flockCenter.x -= (boids[i].x - boids[index].x);
flockCenter.y -= (boids[i].y - boids[index].y);
}
}
}
}
if (count > 0) {
percievedCenter.x = percievedCenter.x / count;
percievedCenter.y = percievedCenter.y / count;
percievedCenter.x = (percievedCenter.x - boids[index].x) / 400;
percievedCenter.y = (percievedCenter.y - boids[index].y) / 400;
percievedVelocity.x = percievedVelocity.x / count;
percievedVelocity.y = percievedVelocity.y / count;
flockCenter.x /= count;
flockCenter.y /= count;
}
addForce(index, percievedCenter);
addForce(index, percievedVelocity);
addForce(index, flockCenter);
}
var update = function(){
for (var i = 0; i < boids.length; i++) {
//Draw boid
ctx.beginPath();
ctx.strokeStyle = boids[i].c;
ctx.lineWidth = size;
ctx.moveTo(boids[i].x, boids[i].y);
boids[i].x += boids[i].v.x * speed;
boids[i].y += boids[i].v.y * speed;
applyForces(i);
ctx.lineTo(boids[i].x, boids[i].y);
ctx.stroke();
ctx.fill();
checkWallCollisions(i);
}
}
//Gui uses this to clear the canvas
var clearCanvas = function(){
ctx.fillStyle = 'rgba(255, 255, 255, 1.0)';
ctx.beginPath();
ctx.rect(0, 0, width, height);
ctx.closePath();
ctx.fill();
}
init();
})();1711 líneas
Organización del código JavaScript
-
¿2000 líneas en un solo archivo?
Ventajas
Inconvenientes
- Difícil de leer/entender
- Difícil de mantener
- Poca reusabilidad
- Difícil encontrar código no usado
- Colisiones de nombres
- Una sola petición HTTP
Organización del código JavaScript
-
Optimización: dividir el código en varios archivos/módulos
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<meta charset="UTF-8">
<title>Mi web</title>
<script src="vendor/jquery/jquery.min.js"></script>
<script src="js/modules/tabs.js"></script>
<script src="js/modules/banners.js"></script>
<script src="js/modules/lightbox.js"></script>
<script src="js/modules/scroll.js"></script>
<script src="js/modules/carousel.js"></script>
<script src="js/modules/slideshow.js"></script>
<script src="js/modules/gallery.js"></script>
<script src="js/modules/navigation.js"></script>
</head>
Organización del código JavaScript
Ventajas
Inconvenientes
- Difícil encontrar código no usado (menos difícil que antes)
- Colisiones de nombres
- Muchas peticiones HTTP
- El orden importa: dependencias
- Legible e inteligible
- Fácil de mantener
- Reutilizable
- Cargamos sólo lo que necesitamos
<head>
<meta charset="UTF-8">
<title>Mi web</title>
<script src="vendor/jquery/jquery.min.js"></script>
<script src="js/modules/tabs.js"></script>
<script src="js/modules/banners.js"></script>
<script src="js/modules/lightbox.js"></script>
<script src="js/modules/scroll.js"></script>
<script src="js/modules/carousel.js"></script>
<script src="js/modules/slideshow.js"></script>
<script src="js/modules/gallery.js"></script>
<script src="js/modules/navigation.js"></script>
</head>Organización del código JavaScript
-
Dependencias: es difícil asegurar el orden, y no es posible tener dependencias circulares
<head>
<meta charset="UTF-8">
<title>Mi web</title>
<script src="vendor/jquery/jquery.min.js"></script>
<script src="js/modules/tabs.js"></script>
<script src="js/modules/banners.js"></script>
<script src="js/modules/lightbox.js"></script>
<script src="js/modules/scroll.js"></script>
<script src="js/modules/carousel.js"></script>
<script src="js/modules/slideshow.js"></script>
<script src="js/modules/gallery.js"></script>
<script src="js/modules/navigation.js"></script>
</head>Organización del código JavaScript: módulos
-
Module loaders: ellos gestionan las dependencias y cargan los módulos (RequireJS, SystemJS)
Ventajas
Inconvenientes
- Difícil encontrar código no usado (menos difícil que antes)
- Muchas peticiones HTTP
- Legible e inteligible
- Fácil de mantener
- Reutilizable
- Cargamos sólo lo que necesitamos
- Gestión automática de dependencias
- Encapsulación
Organización del código JavaScript: módulos
-
Module bundlers: además de lo anterior, generan un solo código encadenado y minificado (browserify, webpack)
Ventajas
- Legible e inteligible
- Fácil de mantener
- Reutilizable
- Cargamos sólo lo que necesitamos
- Gestión automática de dependencias
- Encapsulación
- Una o muy pocas conexiones HTTP
- Eliminación de código no usado (tree shaking)
Organización del código JavaScript: módulos
-
¿Puedo escribir mis módulos como yo quiera? ¿hay un estándar?
-
AMD: Asynchronous Module Definition
-
CommonJS
-
UMD: Universal Module Definition
-
ES6 Modules
define(['myModule', 'myOtherModule'], function(myModule, myOtherModule) {
return {
hello: function() {
console.log('hello');
},
goodbye: function() {
console.log('goodbye');
}
};
});var myModuleA = require('myModuleA');
function myModuleB() {
this.hello = function() {
return 'hello!';
}
this.goodbye = function() {
return 'goodbye!';
}
}
module.exports = myModuleB;(function (root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD
define(['myModule', 'myOtherModule'], factory);
} else if (typeof exports === 'object') {
// CommonJS
module.exports = factory(require('myModule'), require('myOtherModule'));
} else {
// Browser globals (Note: root is window)
root.returnExports = factory(root.myModule, root.myOtherModule);
}
}(this, function (myModule, myOtherModule) {
// Methods
function notHelloOrGoodbye(){}; // A private method
function hello(){}; // A public method because it's returned (see below)
function goodbye(){}; // A public method because it's returned (see below)
// Exposed public methods
return {
hello: hello,
goodbye: goodbye
}
}));import { method1 } from './moduleA.js';
method1("hello");
export let method2 = function() {
console.log("Method 2");
}Organización del código JavaScript: módulos
-
¿AMD, CommonJS, UMD, ES6?
-
Compatibilidad de los módulos ES6 en navegadores
-
¡Webpack!
-
TypeScript usa la sintaxis ES6
-
TS -> ES5 -> webpack -> bundle -> browser =
Angular CLI
ES6
-
let y const
-
Template literals
-
for ... of
-
Funciones
-
Parámetros opcionales
-
Función arrow:
(parámetros) => expresión_devuelta;
-
ES6
-
Operador spread
-
Parámetros en funciones
-
Enviar varios parámetros a partir de un array
-
push y unshift
-
Intercalar un array dentro de otro
-
Copiar un array en otro
-
Copiar un objeto en otro
-
ES6
-
Clases
-
Propiedades y métodos
-
Getters y setters
-
Propiedades y métodos estáticos
-
Herencia con extends y super()
-
ES6
-
Módulos
-
import
import { literal } from 'ruta_modulo';
import literal from 'ruta_modulo';
import * as literal from 'ruta_modulo';
import 'ruta_modulo'; - export
export let a = 3;
export let class Clase {
...
}
export default {
key: value
}
-
Programación funcional con arrays
-
Métodos:
-
map
-
filter
-
reduce
-
find
-
-
Encadenamiento
TypeScript
TypeScript
-
Superconjunto de JavaScript
-
Transpila a ES5
-
Tipado
-
Errores en tiempo de compilación
-
tsc
-
tsconfig.json
TypeScript
-
Tipos básicos:
-
number
-
string
-
boolean
-
Array
-
any
-
void
-
-
Enum
-
Union types
-
Genéricos
TypeScript
-
Funciones
-
Sin flexibilidad en el número de parámetros
-
Parámetros opcionales
-
-
Clases
-
Propiedades fuera del constructor
-
Visibilidad de los miembros
-
Modificador readonly
-
-
Propiedades estáticas
-
Interfaces
-
Métodos abstractos
-
TypeScript
-
Decoradores (@)
Angular
Primeros pasos
-
ng new para generar la app
-
ng serve -o para ejecutarla y verla en el navegador
-
Entornos dev y prod
-
Módulos, componentes y vistas
-
Archivos de configuración
Esqueleto de una pieza en Angular
-
clase =>
-
=> clase exportada =>
-
=> clase exportada y decorada =>
-
=> dependencias
Examinando un componente
-
Metadata
-
selector
-
template / templateUrl
-
styles / styleUrls
-
Examinando un template
-
Custom elements
-
Data binding
-
Interpolation
-
Property binding
-
Class & style binding
-
Event binding
-
Two-way binding
Examinando un template
-
Directivas de atributo
-
ngClass
-
ngStyle
-
-
Directivas estructurales
-
ngIf
-
ngFor
-
ngSwitch
-
-
Pipes
-
@Pipe, PipeTransform
-
Servicios
-
Dependency Injection
-
Injectable()
-
Proveedores
-
Singleton
Formularios
-
[(ngModel)]: Two-way binding
-
ngForm, ngModel y ngSubmit
-
Variables de template con #
-
Validaciones: los diferentes estados
-
Resetear los estados
-
Template driven y Reactive forms
Conexiones con el servidor
-
Asincronía
-
Observables
-
Suscripciones
-
API REST
-
El módulo HttpClientModule
-
Módulo HttpClientModule y servicio HttpClient
-
Métodos del servicio HttpClient:
get(), post(), put(), patch(), delete()
-
Navegación por la app
-
El router
-
Las rutas
-
Parámetros: los observables paramMap, queryParamMap y data de ActivatedRoute
-
Página por defecto
-
404
-
Guards
-
-
El RouterOutlet
-
Links de navegación: routerLink y routerLinkActive
-
router.navigate()
-
History API
-
El servicio Title
Despliegue a producción
-
Pruebas con ng build
-
ng build:
-
--prod: código optimizado para producción
-
--build-optimizer: más optimización
-
--base-href=: cambia el directorio base
-
--sourcemaps: genera los source maps
-
Links