如何执行多个Javascript函数异步？ [英] How Can I Execute Multiple Javascript Functions Asynchronous?

问题描述

我有两个功能，如下例。



函数CallAsysnc（）{



FirstFun（ ）; //第一个功能

SecondFun（）; //第二个函数

}



如果我运行此代码然后我们知道javascript在单个线程中运行但我需要异步调用。

甚至我如何调用js文件并行？或者如何使用async.js完成？



将非常感谢您的回复。

非常感谢！



问候

Gaurv

I have two functions as below example.

function CallAsysnc(){

FirstFun(); // 1st function
SecondFun(); //2nd function
}

if i run this code then as we know javascript run in a single thread but i need asynchronous call.
even how can i call js files parallel? or how could it be done using async.js?

will appreciate your response.
Many Thanks!

Regards
Gaurv

推荐答案

正如你所提到的，JavaScript是单线程的，没有真正的异步函数调用...但是你可以使用 setTimeout [ ^ ]运行功能而不等待其返回...

As you mentioned JavaScript is single threaded, and there is no real asynchronous function call in it...However you may use setTimeout[^] to run function without waiting to its return...

这个链接可以帮到你。



http：// www。 w3schools.com/tags/att_script_async.asp [ ^ ]

This link will help you.

http://www.w3schools.com/tags/att_script_async.asp[^]

您可以尝试网络工作者： https://developer.mozilla.org/en/docs/Web/Guide/Performance/Using_web_workers [ ^ ] - 我自己从未使用过它们，但它们可能就是您要找的东西。

You could try web workers: https://developer.mozilla.org/en/docs/Web/Guide/Performance/Using_web_workers[^] - I've never used them myself, but they might be what you are looking for.

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