DOM animatsiyalari
JavaScript yordamida HTML animatsiyalarini yaratishni o‘rganing.
Oddiy veb-sahifa
JavaScript yordamida HTML animatsiyalarini qanday yaratishni ko‘rsatish uchun biz oddiy veb-sahifadan foydalanamiz:
Misol
<!DOCTYPE html>
<html>
<body>
<h1>My First
JavaScript Animation</h1>
<div id="animation">My animation will go here</div>
</body>
</html>
Animatsiya konteynerini yarating
Barcha animatsiyalar konteyner elementiga nisbatan bo‘lishi kerak.
Misol
<div id ="container">
<div id ="animate">My
animation will go here</div>
</div>
Elementlarga stil bering
Konteyner elementi = " position: relative " uslubi bilan yaratilishi kerak.
Animatsiya elementi = " position: absolute " uslubi bilan yaratilishi kerak.
Misol
#container {
width: 400px;
height:
400px;
position: relative;
background: yellow;
}
#animate {
width: 50px;
height:
50px;
position: absolute;
background: red;
}
O‘zingiz sinab ko‘ring »
Animatsiya kodi
JavaScript animatsiyalari element uslubidagi bosqichma-bosqich o‘zgarishlarni dasturlash orqali amalga oshiriladi.
O‘zgarishlar taymer tomonidan chaqiriladi. Taymer oralig‘i kichik bo‘lsa, animatsiya uzluksiz ko‘rinadi.
Asosiy kod quyidagicha:
Misol
id = setInterval(frame, 5);
function frame() {
if (/*
test for finished */) {
clearInterval(id);
} else {
/* code to change the element style */
}
}
JavaScript yordamida to‘liq animatsiya yarating
Misol
function myMove() {
let id = null;
const elem = document.getElementById("animate");
let pos = 0;
clearInterval(id);
id = setInterval(frame, 5);
function frame() {
if (pos ==
350) {
clearInterval(id);
} else {
pos++;
elem.style.top = pos + 'px';
elem.style.left = pos + 'px';
}
}
}
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