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1>ÓÃ;һ£ºÊý×é
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<!--´´½¨Êý×éµÄ·½Ê½-->
var array1 = new Array;
var array2 = new Array(2);
var array3 = new Array("green","red","blue");
var array4 = ["one","two","three"];
<!--¶ÔÊý×éµÄ²Ù×÷,ÌáʾËùÓвÙ×÷ÊǶÔÔ­arrayµÄ²Ù×÷-->
array3.length // 3
array3.toString() // green,red,blue
array3.valueOf() // green,red,blue
array3.join() // green,red,blue
array3.join("") // green red blue
array3.join("-") // green-red-blue
array3.shift() // red,blue
array3.unshift("black") // black,green,red,blue
<!--Êý×é×îÓÐ×Ô¶¯À©ÈݵŦÄÜ-->
array2.length // 2
array2[28] = "aa"; array2.length // 29
array2.shift(); array2.length //1

<!--×Ö·û´®ÓëÊý×é¼äµÄת»»-->
var str = "green"
var arr = str.split("");
arr.toString() // "g,r,e,e,n"

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var arr = new Array;
arr.push("1");
arr.push("2");
arr.push("3");
arr.push("4");
for(var i=0;i<arr.length;i++){
alert(arr.pop());
}
//output: 4 3 2 1


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