extrategy
aiutiamo aziende e startup a raggiungere i propri obiettivi di business utilizzando internet, la tecnologia e un approccio lean
Javascript Basics
JavaScript
JS was created by Brendan Eich in 1995...
...in 10 days...
Name
Java is not JavaScript
Mocha
LiveScript
JavaScript
ECMAScript
What Can I Do With It?
Web
Server
Desktop
Mobile
IoT
NES
https://github.com/emkay/nesly
any application that can be written in JavaScript, will eventually be written in JavaScript
Jeff Atwood
JavaScript is the new Java
References
Types
Javascript is a Dynamic Langauge
A variable can change type during execution
But that doesn't mean that types doesn't exist
Classes?
Functions
Functions are objects
There is no overload
All parameters are optional
like all other types, functions can be passed to functions
Scope
Scope is a set of rules for storing/find variables in some location
var a = 1;
b = 2;
function dummy(a){
var c = a * 2;
return c + b;
}
var c = dummy(b);
console.log(c); //6JavaScript it's "compiled"
sayHello();
function sayHello() {
console.log("Hello World");
}function sayHello() {
console.log("Hello World");
}
sayHello();Functions create a scope
And functions can be nested
Utils
lodash
Lodash -The Batman’s utility belt of Javascript.
Arrays
Objects
Functions
Strings
Moment.js
var x = new Date();
Parse
Display
Durations
i18n
That's It!
Thanks!
Javascript Basics
By extrategy
