setTimeout 的最小毫秒值是多少? [英] What is minimum millisecond value of setTimeout?
问题描述
我想放
var minValue = 0;
if ( typeof callback == 'function' ) {
setTimeout( callback, minValue );
}
当我用 JavaScript 实现回调函数时的这段代码.
this code when I implement callback function with JavaScript.
但我发现现代浏览器和一些旧浏览器
But I've found that modern browsers and some old browsers
有不同的最小超时值.
我知道零不可能是最小值.
I know that Zero cannot be minimum value.
setTimeout 的最小值是什么
现代浏览器和一些旧浏览器是否存在兼容性问题?
推荐答案
我认为 10 将是所有浏览器中最可靠的最小值,因为我已经看到很多代码使用它.
I think that 10 will be the most reliable minimum in all browser, since I've seen a lot of codes using it.
事实上,4ms 是由 HTML5 规范指定的,并且在 2010 年及以后发布的浏览器中是一致的.在 (Firefox 5.0/Thunderbird 5.0/SeaMonkey 2.2) 之前,嵌套超时的最小超时值为 10 毫秒.
In fact, 4ms is specified by the HTML5 spec and is consistent across browsers released in 2010 and onward. Prior to (Firefox 5.0 / Thunderbird 5.0 / SeaMonkey 2.2) , the minimum timeout value for nested timeouts was 10 ms.
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