javascript

Introduction to the use of the sort of method for arrays in javascript


<html>
<head>
<title> An array of sort() methods </title>

<script>


var arr = [2,4,8,1,22,3];
var arrSort= arr.sort();//Not properly sorted, the array is converted to a string and then sorted
document.write(" The default sort array is: " + arrSort);//1,2,22,3,4,8
document.write("<br/>");

//The comparison function
function mysort(a,b){
return a-b;
}

var arrSort2 = arr.sort(mysort);// The incoming The comparison function
document.write(" The array of comparison parameters passed in is: " + arrSort2);//The correct order
document.write("<br/>");

document.write(" The original array is: " + arr);

</script>

</head>

<body>
<div id="time"></div>
</body>

</html>