テキスト入力フォームで文字数を表示する - JavaScript TIPSふぁくとりーFirst Faved : Jul 04 2008 by mippeFaved : 1 time with noteViewed : 1 timeFave It!
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- mippe - Jul 04 2008 | javascript, Form, onkeyup
JavaScriptを使うと、テキストエリアなどの文字列入力フォーム上で、ユーザが入力した文字数をカウントすることが簡単にできます。それを活用すると、テキストエディタのように、「現在の入力文字数」をリアルタイムに表示することもできます。
例えば、以下のように。
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