Javascript 窗口加载事件中的Javascript setTimeout函数......不起作用
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Javascript setTimeout function in window load event... not working
提问by Sunil Kumar
I've done this a month before... But now its not working... The code is
我一个月前做过这个......但现在它不起作用......代码是
window.onload = function(){
setTimeout(function(){
alert("Hello");
}, 10000);
};
This is written in script in head of the test.php page. The script and other tags are correct.
这是在 test.php 页面头部的脚本中编写的。脚本和其他标签是正确的。
I would like to call a specific function every 10 seconds. The alert just shows once only. This is problem in every browser.... After this testing i would like to check the url every 2 seconds and call an AJAX function.
我想每 10 秒调用一次特定的函数。警报只显示一次。这在每个浏览器中都是问题.... 在这个测试之后，我想每 2 秒检查一次 url 并调用一个 AJAX 函数。
Any Help??
任何帮助？
回答by James Allardice
That's what setTimeoutdoes (executes once after a specified interval). You're looking for setInterval(calls a function repeatedly, with a fixed time delay between each call to that function):
这就是setTimeout（在指定的时间间隔后执行一次）。您正在寻找setInterval（重复调用一个函数，每次调用该函数之间有固定的时间延迟）：
window.onload = function(){
setInterval(function(){
alert("Hello");
}, 10000);
};
回答by Quentin
Use setIntervalinstead.
请改用setInterval。
回答by abuduba
var fn = function(){alert("Hello")};
It is possible using setTimeout:
可以使用 setTimeout：
window.onload = function(){ setTimeout( function(){ fn();window.onload() },10000) };
but the best solution is setInterval:
但最好的解决方案是 setInterval：
window.onload = function() { setInterval(fn,10000)};
回答by MOleYArd
setTimeout is intended for one-time run. Look at setInterval function.
setTimeout 用于一次性运行。看看 setInterval 函数。
