JavaScript で setTimeout を使って定期的に処理を行なう方法
2010年9月 3日 14:04
JavaScript で、数秒おきとか数分おきに定期的に自動で処理を行なう方法の解説です。
ブラウザ上でタイマー的なことを実現したり、Ajax 非同期通信と平行してブラウザ上の何らかの値を監視したりするのにも使えます。
window.setTimeout() を使うと、指定した時間の後に処理を実行できるので、これを利用してループを行ないます。
// 最初の実行
TimerCount();
function TimerCount(){
// ここに定期的に行なう処理を書く
// 1秒ごとに実行
window.setTimeout("TimerCount()",1000);
}
setTimeout の書式は 「setTimeout(処理,待機する時間(1/1000秒単位))」となっているので、1秒ごとに実行する場合は 1000 を指定します。1分なら 60000 ですね。
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» JavaScript/setTimeout(PukiWiki Plus! (PukiWiki/TrackBack 0.3))のトラックバック
[2013年2月 1日 19:07]
http://www.abe-tatsuya.com/web_prog/javascript/settimeout.php 続きを読む
» JavaScript/Tips/定期的に処理させる方法(PukiWiki Plus! (PukiWiki/TrackBack 0.3))のトラックバック
[2013年2月 1日 19:09]
JavaScriptでsetTimeoutを使って定期的に処理を行う方法 http://www.abe-tatsuya.com/web_prog/java... 続きを読む
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