Baseline Widely available
load
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¨ã«èªã¿è¾¼ã¾ããã¨ãã«çºè¡ããã¾ããä»ã®ã¨ããã対å¿ãã¦ãã HTML è¦ç´ ã¯ã<body>
ã<embed>
ã<iframe>
ã<img>
ã<link>
ã<object>
ã<script>
ã<style>
ã<track>
ã§ãã
ã¡ã¢: å®éã«ã¯ load
ã¤ãã³ãã¯ãHTMLBodyElement
ã«ããã¦ã¯ã window.onload
ã¤ãã³ãã®å¥åã§ããå¾ã£ã¦ãload
ã¤ãã³ã㯠<body>
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ãã®ã¤ãã³ãã¯ãã£ã³ã»ã«ä¸å¯ã§ããããªã³ã°ãã¾ããã
æ§æãã®ã¤ãã³ãåã addEventListener()
çã®ã¡ã½ããã§ä½¿ç¨ããããã¤ãã³ããã³ãã©ã¼ããããã£ãè¨å®ããããã¦ãã ããã
elt.addEventListener("load", (event) => { ... });
// ã¾ãã¯
elt.onload = (event) => { ... };
ã¤ãã³ãå
ä¸è¬ç㪠Event
ã§ãã
ãã®ä¾ã§ã¯ã<img>
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<img
id="image"
src="/shared-assets/images/examples/favicon144.png"
alt="MDN logo"
width="72" />
<div><button onclick="reload()">Reload</button></div>
JavaScript
const image = document.getElementById("image");
image.onload = () => {
document.body.appendChild(document.createElement("div")).textContent =
"loaded!";
};
function reload() {
image.src = "/shared-assets/images/examples/favicon144.png";
}
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