我如何让这个 javascript 每秒运行一次？
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How do i get this javascript to run every second?
提问by user663049
Sorry i'm abit of a noob I just want to know how i get this javascript to run every second?
抱歉，我是个菜鸟，我只想知道如何让这个 javascript 每秒运行一次？
source code:
源代码：
<script type="text/javascript">
$(function() {
//More Button
$('.more').live("click",function() {
var ID = $(this).attr("id");
if(ID) {
$("#more"+ID).html('<img src="moreajax.gif" />');
$.ajax({
type: "POST",
url: "ajax_more.php",
data: "lastmsg="+ ID,
cache: false,
success: function(html){
$("ol#updates").prepend(html);
$("#more"+ID).remove();
}
});
} else {
$(".morebox").html('no posts to display');
}
return false;
});
});
</script>
回答by Mike Lewis
Use setInterval()to run a piece of code every x milliseconds.
使用setInterval()每 x 毫秒运行一段代码。
You can wrap the code you want to run every second in a function called runFunction.
您可以将要每秒运行的代码封装在一个名为 的函数中runFunction。
So it would be:
所以它会是：
var t=setInterval(runFunction,1000);
And to stop it, you can run:
要阻止它，您可以运行：
clearInterval(t);
回答by Town
Use setInterval:
使用setInterval：
$(function(){
setInterval(oneSecondFunction, 1000);
});
function oneSecondFunction() {
// stuff you want to do every second
}
Here's an articleon the difference between setTimeoutand setInterval. Both will provide the functionality you need, they just require different implementations.
下面是文章上的区别setTimeout和setInterval。两者都将提供您需要的功能，它们只需要不同的实现。
回答by Vismari
You can use setTimeout to run the function/command once or setInterval to run the function/command at specified intervals.
您可以使用 setTimeout 运行一次函数/命令或使用 setInterval 以指定的时间间隔运行函数/命令。
var a = setTimeout("alert('run just one time')",500);
var b = setInterval("alert('run each 3 seconds')",3000);
//To abort the interval you can use this:
clearInterval(b);
回答by Stephen P
Use setInterval(func, delay)to run the funcevery delaymilliseconds.
使用setInterval(func, delay)func每delay毫秒运行一次。
setTimeout()runs your function onceafter delaymilliseconds -- it does not run it repeatedly. A common strategy is to run your code with setTimeout and call setTimeout again at the end of your code.
setTimeout()在几毫秒后运行一次你的函数delay——它不会重复运行它。一个常见的策略是使用 setTimeout 运行您的代码并在您的代码结束时再次调用 setTimeout。
回答by Christopher Armstrong
You can use setInterval:
您可以使用setInterval：
var timer = setInterval( myFunction, 1000);
Just declare your function as myFunction or some other name, and then don't bind it to $('.more')'s live event.
只需将您的函数声明为 myFunction 或其他名称，然后不要将其绑定到$('.more')的实时事件。
回答by Nitin Midha
window.setTimeout(func,1000);
This will run func after 1000 milliseconds. So at the end of func you can call window.setTimeout again to go in a loop of 1 sec. You just need to define a terminate condition.
这将在 1000 毫秒后运行 func。因此，在 func 结束时，您可以再次调用 window.setTimeout 以进入 1 秒的循环。您只需要定义一个终止条件。
