Frontend dasturchi nimalarga eʼtibor berishi kerak?

Xatolar, yechimlar va tavsiyalar


Muhammadjavohirbek Sur'atov

3

O'zim haqimda

  • TXVU bitiruvchisi
    • Biznes Axborot Tizimlari fakulteti
    • ustozlik bo'yicha mutaxassislik kursi
  • verstalshik, frontend dasturchi, o'qituvchi
  • dars o'tish bo'yicha 2 yildan ortiq tajriba
  • "Najot Ta'lim" markazida frontend dasturlash kursi o'qituvchisi
  • @mayoquz Telegram kanali - 1300+ obunachi
  • YouTube kanal - 750+ obunachi

Taqdimotda mavzulari

  • umumiy
  • HTML, CSS, JavaScript
  • instrumentlar
  • muomala
  • ishga kirish

 

  • havolalar berib boriladi

Barcha videolarni ko'rish

UX injener

JS injener

MAQSAD

The Great Divide

Ingliz tili

  • ma'lumotlar ingliz tilida
  • standart muloqot tili
  • tekin manbalar
  • savollarga javob tayyor

 

Sherlok Holms,

Yer va Quyosh

O'rganishning tutquni bo'lish

Kodni avtomatik tekshirish

Qachon tugma ko'rinishidagi element tugma bo'lmaydi?

When is a button not a button?

Formasiz input yozish

<!DOCTYPE html>
<html lang="uz">
<head>
  <meta charset="UTF-8">
  <title>Login</title>
</head>
<body>
  <input type="email" name="email" placeholder="Email" required>
  <input type="password" name="password" placeholder="Parol" required>
  <button type="submit">Profilga kirish</button>
</body>
</html>
<!DOCTYPE html>
<html lang="uz">
<head>
  <meta charset="UTF-8">
  <title>Login</title>
</head>
<body>
  <form action="login" method="POST">
    <input type="email" name="email" placeholder="Email" required>
    <input type="password" name="password" placeholder="Parol" required>
    <button type="submit">Profilga kirish</button>
  </form>
</body>
</html>

Rasmlar bilan ishlash

Qanday rasm formatlari bor?

JPG, PNG, GIF, SVG, WEBP

Qanday format ishlatiladi?

Rasmni joylashdan oldin nima ishlar qilinadi?

Rasmni joylashdan oldin

  • To'g'ri o'lchamdagi rasm tanlash
  • Mos formatga keltirish
  • Rasmni optimallashtirish, zichlash

Rasmni optimallashtirish

Rasm uchun qaysi teglar ishlatiladi?

Rasmlar uchun teglar

  • <img>
  • <svg>
  • <picture>

 

Picture bo'yicha qo'llanma

CSSni o'rganishdagi eng jiddiy xato qaysi?

CSS asoslarini bilmaslik

Bu elementni qanday joylash mumkin?

Instrumentlardan foydalanish

DRY

Don't Repeat Yourself

.button-1 {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 3px;
  font-weight: bold;
  text-decoration: none;
  color: #fff;
  background-color: tomato;
}

.button-2 {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 3px;
  font-weight: bold;
  text-decoration: none;
  color: #222;
  background-color: gold;
}
.button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 3px;
  font-weight: bold;
  text-decoration: none;
}

.button--danger {
  color: #fff;
  background-color: tomato;
}

.button--warning {
  color: #222;
  background-color: gold;
}

Global stillar

p {
  margin: 0;
  font-size: 20px;
}

ul {
  padding: 0;
  margin: 0;
  list-style-type: none;
}

img {
  width: 400px;
}

O'ta uzun tanlovchilar

body .container .article p:nth-child(3) span {
	/* kod */
}
.article span { }

.styled-text { }

Shriftlarni qay yo'l bilan ulash mumkin?

Shriftlarni ulash

  • Internetdan to'g'ridan-to'g'ri
  • Lokal tarzda

Shriftlar formatlarini bilasizmi?

SVG, EOT, OTF, TTF,

WOFF, WOFF2

 

Transfonter

Shriftni lokal tarzda ulashdagi xato

@font-face {
  font-family: "Roboto";
  src: url("../fonts/Roboto-Regular.woff2") format("woff2"),
    url("../fonts/Roboto-Regular.woff") format("woff");
}

@font-face {
  font-family: "Roboto-Bold";
  src: url("../fonts/Roboto-Bold.woff2") format("woff2"),
    url("../fonts/Roboto-Bold.woff") format("woff");
}

@font-face {
  font-family: "Roboto-Italic";
  src: url("../fonts/Roboto-Italic.woff2") format("woff2"),
    url("../fonts/Roboto-Italic.woff") format("woff");
}

.sitenav { font-family: "Roboto", "Arial", sans-serif; }
.heading { font-family: "Roboto-Bold", "Arial", sans-serif; }
.article em { font-family: "Roboto-Italic", "Arial", sans-serif; }
@font-face {
  font-family: "Roboto";
  src: url("../fonts/Roboto-Regular.woff2") format("woff2"),
    url("../fonts/Roboto-Regular.woff") format("woff");
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Roboto";
  src: url("../fonts/Roboto-Bold.woff2") format("woff2"),
    url("../fonts/Roboto-Bold.woff") format("woff");
  font-style: normal;
  font-weight: 700;
}

@font-face {
  font-family: "Roboto";
  src: url("../fonts/Roboto-Italic.woff2") format("woff2"),
    url("../fonts/Roboto-Italic.woff") format("woff");
  font-style: italic;
  font-weight: 400;
}

body { font-family: "Roboto", "Arial", sans-serif; }
.heading { font-weight: 700; }
.article em { font-style: italic; }

Saytni position xususiyati yordamida tuzish

Sayt to'rini float yordamida tuzish

  • qiyin
  • clear qilish kerak

 

  • Flexbox
  • Grid

Sayt faqat maketdagi holatga to'g'ri kelishi, kontentga moslashmaslik

Har qanday ko'rinishdagi maketni tuzishga tayyor turish

Qaysi brauzerdan foydalanasiz?

Brauzerlarni xafa qilmang!

  • Chrome

  • Firefox

  • Opera

  • Yandex

  • Safari

  • Internet Explorer 💩

  • Edge

Krossbrauzer verstka

Sayt sifatini tekshirish

JavaScript bo'yicha oltinga teng tavsiya

var productsList = document.querySelector('.products');
var product = document.createElement('div');
product.classList.add('product');
var productName = document.createElement('h3');
productName.classList.add('product__name');
productName.textContent = 'Telefon';
var productImage = document.createElement('img');
productImage.src = 'https://picsum.photos/300';
productImage.alt = 'Telefon rasmi';
productImage.classList.add('product__img');
var productPrice = document.createElement('div');
productPrice.textContent = '$300';
product.appendChild(productName);
product.appendChild(productImage);
product.appendChild(productPrice);
productsList.appendChild(product);
<template id="product-template" style="display: none;">
  <div class="product">
    <h3 class="product__name">Test</h3>
    <img class="product__img" src="test" alt="test">
    <div class="product__price">100</div>
  </div>
</template>

HTML kod

var productsList = document.querySelector('.products');
var productTemplate = document.querySelector('#product-template');
var productClone = document.importNode(productTemplate.content, true);
var productName = productClone.querySelector('.product__name');
productName.textContent = 'Telefon';
var productImg = productClone.querySelector('.product__img');
productImg.src = 'https://picsum.photos/300';
var productPrice = productClone.querySelector('.product__price');
productPrice.textContent = '$300';
productsList.appendChild(productClone);

JS kod

BEM nima?

CSS kod yozish uchun yondashuv

BEM nega kerak?

.block { ... }

.block__element { ... }

.block--modifier { ... }

.block__element--modifier { ... }

BEM bo'yicha tanlovchilarni yozish uchun qolip

Sass va LESS

Git va GitHubni bilmaslik

Gulpni nima bilan yeyiladi?

Avtomatizatsiya

Modernizatsiya

Vulkanizatsiya

Gulp nima qila oladi?

  • Sass|LESS -> CSS
  • avtomatik prefikslash
  • brauzerni avtomatik yangilash
  • rasmlarni optimallashtirish
  • SVG spraytlar tuzish
  • keraksiz kodni chiqarib tashlash
  • saytni serverga joylash

Yangiliklardan bexabar bo'lish

  • Podkastlar
  • Saytlar
  • Videolar

Ishga kirish

  • "Men JavaScriptni 40% bilaman"
  • Portfolio fleshkada
  • Rezyume
  • Yozishmalar odobi

Savollar?

Frontend dasturlash

By Muhammadjavohir Suratov

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