回答編集履歴
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chousei
test
CHANGED
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@@ -1,3 +1,59 @@
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contenteditableはブラウザによって実装が違うのでめんどくさい調整をする気がないなら
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すなおにtextareaでやった方がよいですよ
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# sample
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以下moを利用した検証
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```javascript
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<style>
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.txt-area{
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background: lightgray;
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line-height: 30px;
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font-size: 20px;
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height:30px;
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width:200px;
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border: 2px solid;
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border-color: #1da1f2;
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}
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</style>
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<script>
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const observer = new MutationObserver((mutations) => {
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mutations.forEach((mutation) => {
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console.log(mutation.target.innerHTML);
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});
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});
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const config = { childList:true};
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window.addEventListener('DOMContentLoaded', ()=>{
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observer.observe(document.querySelector('#dmComposerTextInput'), config);
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});
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</script>
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<div aria-multiline="true" class="txt-area" contenteditable="true" id="dmComposerTextInput" role="textbox" spellcheck="true" tabindex="0" style="outline: none; user-select: text; white-space: pre-wrap; overflow-wrap: break-word;"></div>
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```
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