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HTMLIFrameElement: contentWindow プロパティ - Web API | MDN
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HTMLIFrameElement: contentWindow プロパティ
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
contentWindow プロパティは、HTMLIFrameElement が所属する Window オブジェクトを返します。この Window オブジェクトを使用して、iframe の文書や内部 DOM にアクセスすることができます。この属性は読み取り専用ですが、グローバルの Window オブジェクトのように操作することができます。
値
Window オブジェクト。
例
js
const x = document.querySelector("iframe").contentWindow;
//x = window.frames[0];
x.document.querySelector("body").style.backgroundColor = "blue";
// 文書内の最初の iframe が青くなる
仕様書
| Specification |
|---|
| HTML # dom-iframe-contentwindow |
ブラウザーの互換性
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