node.js - nodejs如何同步延迟运行函数

Question

队列示例

var array = [1,2,3,4];
function check()
{
if(array.length > 0)
var url = array.pop();
load(url);
}}
function load(url)
{
http.get(url, function(res){
check();
)
}}

我想在 每次load(url)的时候 延迟6秒 这时候我用setTimeout 没什么效果

Answer 1

Use sleep

Answer 2

1. It’s best to format it when sending the code! Dear

2. If you use setTimeout to implement it, you need to recurse

Answer 3

The timing function can be written like this

    var a = function(){
        //逻辑
        setTimeout(() => {
            a()
        }, time)
    }

I don’t know if that’s what you want