javascript/jQuery setInterval/clearInterval [英] javascript/jQuery setInterval/clearInterval

问题描述

我正在使用setInterval来检查p(html段落)是否具有特定的文本值.如果有它，我想清除间隔继续代码流.我在jQuery插件中使用了此功能，因此，如果该段落具有tat文本值，我想清除时间间隔，然后继续使用回调函数. 所以我尝试了这样的事情:

i'm using setInterval to check if a p(html paragraph) has a certain text value. if it has it i want to clear interval an continue code flow. i'm using this in a jQuery plugin so if the paragraph has tat text value i want to clear interval and then continue with a callback function. so i tried something like this:

var checkTextValue = setInterval(function(){
                          var textVal = $('p').text();
                          if(textVal == 'expectedValue'){
                              clearInterval(checkTextValue);
                              callback();
                          } 
                     },10);

和回调函数，这是一个简单的警报. 我的问题是警报被无休止地调用.如何编写我的代码以正确执行操作?谢谢.

and the callback function it's a simple alert. My problem is that the alert is called endlessly. How can i write my code to do it right? thanks.

推荐答案

使用setTimeout代替setInterval.

Use setTimeout instead of setInterval.

类似的东西:

var checkTextValue = setTimeout(function() {
    var textVal = $('p').text();
    if (textVal == 'expectedValue'){
        callback();
    } else {
        setTimeout(arguments.callee, 10);
    }
},10);

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