本文介绍了setInterval-如何仅触发一次?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
你好,我有这段代码片段,即使我选择了一段时间,它们也会触发一些代码.
Hello I have this snippet of code that will fire some even after time that I choose.
问题是,例如,如果我放3秒,它将每3秒触发一次,我需要的是3秒后仅触发一次.
The problem is that if, for example I put 3 seconds it will fire every 3 seconds, what I need is it to fire only once after 3 seconds.
function playSound(timeLeft){ var sendDataTimeout = function(){ alert('OK'); } var intervalReference = 0; clearInterval(intervalReference); intervalReference = setInterval(sendDataTimeout, timeLeft); }推荐答案
改用setTimeout,它的工作原理几乎相同,但只会触发一次.您有clearTimeout和setTimeout,所以它与setInterval
Use setTimeout instead, it works almost the same but will only fire once. You have clearTimeout and setTimeout so its very similar to setInterval
function playSound(timeLeft){ var sendDataTimeout = function(){ alert('OK'); } setTimeout(sendDataTimeout, timeLeft); }您不再需要使用clearTimeout.但仅供参考,它存在并且与clearInterval相同.
You don't have to use clearTimeout anymore. But FYI it exist and works the same as clearInterval.
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