<! DOCTYPE html>
<title>please Enter your title</title>
<meta charset= "Utf-8" >
<meta name= "Author" content= "Tanzhou College-Teacher Fei" >
<style type= ' text/css ' >
*{margin:0; padding:0;}
</style>
<body>
<script type= "Text/javascript" >
var arr = [1,2,3,4];
Arr.length; Readable and writable
ARR[0]; Readable and writable
Arr.length = 8;
Alert (arr);
var a = Arr.push (1, 2);
var a = Arr.unshift (' Punk ', ' empty Mountain ');
arr = [1,2,3,4,[4,5,6]]
Alert (arr);
Arr.shift ();
Alert (arr);
Arr.splice (6, 0, ' ah ');
Alert (arr);
/*
var arr = [5,6,7,8,2,1,5,6];
Arr.sort (function (x, y) {
return y-x;
});
Alert (arr);
*/
/*
var arr = [n/a];
var a = Arr.concat ([4,5,6]);
alert (a.length);
var a = Arr.join (' | ');
alert (a);
*/
</script>
</body>
Js Array operation
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