marronwork https://blog.hatena.ne.jp/marronwork/ marronworkのチラシの裏 https://marronwork.hatenadiary.org/ javascript <form name="burubon"> <textarea onkeyup="limit(this, 10, document.burubon.akane)" name="memo"> <input type="text" name="akane"> </textarea> </form> function limit(target, maxlength, outtarget) { if ( target.value.length > maxlength ) { outtarget.focus(); target.value = target.value.substr(0, maxleng… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmarronwork.hatenadiary.org%2Fentry%2F20071010%2F1191995086" title="TEXTAREAに文字制限を付けるサンプル - marronworkのチラシの裏" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2007-10-10 14:44:46 rich https://marronwork.hatenadiary.org/entry/20071010/1191995086 1.0 100%