The role of $(function()) in jQuery

This article introduces the role of $(function()) in jQuery, which has certain reference value. I hope it will be helpful to friends who are learning jQuery and JavaScript!

The role of $(function()) in jQuery

$(function()) is equivalent to $(document). ready(function()), the meaning is very simple, it means to wait until the page is loaded before starting to execute the function.

Before using $(function()), my $("body").click() operation did not work. I executed the function first. At this time, the DOM has not been loaded, so it does not work. Take effect. After putting the js function into $(function()), it can run normally.

$(function(){//五分钟无操作，返回系统首页,timeToreturn.js
    function timeToReturn(){
        window.location.href = "http://localhost:8080/zhongCourt/";
    }
    var nowtime = Date.parse(new Date());
    var timeend = Date.parse(new Date());
 
    $("body").click(function(){
        nowtime = Date.parse(new Date());
        console.log("nowtime" + nowtime);   
    });
 
    function check(){
        timeend = Date.parse(new Date());
        console.log("check");
        if((timeend - nowtime) > 300000){
            timeToReturn();
        }
        setTimeout(check,10000);
    }
    setTimeout(check,10000);
    
})

This article comes from the js tutorial column, welcome to learn!

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