JavaScript ?? ??

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var car1="Saab";
var car2="Volvo";
var car3="BMW";

??? ?? ??? ???? ??? ??? ?? ???? ??? 3?? ??? 300?? ??? ?? ?? ?? ????!

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??? ??? ?? ???? ?? ?? ??? ? ???, ?? ???? ?? ?? ???? ? ????.

??? ? ???? ??? ID? ???? ?? ???? ? ????.

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?? ??? myCars?? ?? ??? ?????.

1: ?? ??:

var myCars=new Array()
myCars[0]="Saab";
myCars[1]="Volvo ";
myCars[2]="BMW";

2: ??? ??:

var myCars=new Array("Saab","Volvo","BMW");

3: ? ???:

var myCars =[" Saab","Volvo","BMW"];

??? ???

??? ??? ??? ??? ???? ?? ??? ???? ? ????.

?? ???? myCars ??? ? ?? ?? ???? ? ????.

var name=myCars[0];

?? ???? myCars ??? ? ?? ??? ?????.

myCars[0]="Opel";

[0]? ??? ? ?? ?????. [1]? ??? ? ?? ?????.

???? ??? ??? ?? ? ????.

?? JavaScript ??? ?????. ?? ??? ?????. ??? ?????.

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myArray[0]=Date.now;
myArray[1]=myFunction;
myArray[2]=myCars;

Array ??? ? ??

?? ??? ?? ??? ?? ? ??? ??:

var x=myCars . length?????????????????????? // myCars? ?? ?
var y=myCars.indexOf("Volvo") // "Volvo" ?? ??? ?

?? ??? ??? ??? ?? ??? ???? ??? ?.

<html>
<meta charset="utf-8">
<body>
<script type="text/javascript">
var mycars = new Array()
mycars[0] = "Saab"
mycars[1] = "Volvo"
mycars[2] = "BMW"
for (i=0;i<mycars.length;i++)
{
document.write(mycars[i] + "<br />")
}
</script>
</body>
</html>

for...in ?? ???? ??? ??? ?????.

<html>
<meta charset="utf-8">
<body>
<script type="text/javascript">
var x
var mycars = new Array()
mycars[0] = "Saab"
mycars[1] = "Volvo"
mycars[2] = "BMW"
for (x in mycars)
{
document.write(mycars[x] + "<br />")
}
</script>
</body>
</html>

concat() ???? ???? ? ??? ???? ??:

<html>
<meta charset="utf-8">
<body>
<script type="text/javascript">
var arr = new Array(3)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
var arr2 = new Array(3)
arr2[0] = "James"
arr2[1] = "Adrew"
arr2[2] = "Martin"
document.write(arr.concat(arr2))
</script>
</body>
</html>

sort() ???? ???? ?? ??? ???? ?? ??:

<html>
<meta charset="utf-8">
<body>
<script type="text/javascript">
var arr = new Array(6)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
arr[3] = "James"
arr[4] = "Adrew"
arr[5] = "Martin"
document.write(arr + "<br />")
document.write(arr.sort())
</script>
</body>
</html>

sort() ???? ???? ??? ??? ???? ??:

<html>
<meta charset="utf-8">
<body>
<script type="text/javascript">
function sortNumber(a, b)
{
return a - b
}
var arr = new Array(6)
arr[0] = "10"
arr[1] = "5"
arr[2] = "40"
arr[3] = "25"
arr[4] = "1000"
arr[5] = "1"
document.write(arr + "<br />")
document.write(arr.sort(sortNumber))
</script>
</body>
</html>

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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php中文網(wǎng)(php.cn)</title> </head> <body> <p id="demo">單擊按鈕創(chuàng)建一個數(shù)組,調(diào)用ucase（）方法, 并顯示結(jié)果。</p> <button onclick="myFunction()">點我</button> <script> Array.prototype.myUcase=function(){ for (i=0;i<this.length;i++){ this[i]=this[i].toUpperCase(); } } function myFunction(){ var fruits = ["Banana", "Orange", "Apple", "Mango"]; fruits.myUcase(); var x=document.getElementById("demo"); x.innerHTML=fruits; } </script> </body> </html>

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