How to determine whether the specified class exists in jquery

Jquery method to determine whether the specified class exists: first create a code sample file; then pass "if(yz!=-1){"console.log("...");}else{console .log("...");} method can be used to determine whether the specified class exists.

The operating environment of this tutorial: Windows 7 system, jquery version 1.10.0. This method is suitable for all brands of computers.

Recommended: "jquery Tutorial"

jQuery determines whether the class of the specified object exists

The code is as follows:

var str = $(obj).attr("class");
var strs = str.split(" ");
var yz = $.inArray("cur",strs);
if(yz!=-1){
    console.log("当前对象含有名字为cur的class");
}else{
    console.log("当前对象不存在名字为cur的class");
}

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