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[memo]innerHTML

Last updated at Posted at 2021-01-24

#innerHTML について

innerHTMLを使用すると、HTML要素の取得や書き換えを行うことができます。
例えば、以下のように指定した要素の文字列を取得・操作することができます。

html
<div class="contents" id="apple">りんご</div>
javascript
const apple = document.getElementById("apple")

console.log(apple)
// => <div class="contents" id="apple">りんご</div>

console.log(apple.innerHTML)
// => りんご

apple.innerHTML = "青リンゴ"
console.log(apple.innerHTML)
// => 青リンゴ

apple.innerHTML = "青リンゴ"の意味は
apple.innerHTML へ 青リンゴ を定義するというようなもの。これにより
console.log(apple.innerHTML)を実行すると青リンゴが出力される

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