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JavaScript Tutorial/Array/Array Index - История изменений
2026-04-04T10:48:22Z
История изменений этой страницы в вики
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Admin: 1 версия
2010-05-26T08:25:27Z
<p>1 версия</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 08:25, 26 мая 2010</td>
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Admin
http://wbex.ru/index.php?title=JavaScript_Tutorial/Array/Array_Index&diff=9806&oldid=prev
в 18:52, 25 мая 2010
2010-05-25T18:52:57Z
<p></p>
<p><b>Новая страница</b></p><div>== Append elements to Array by using the index==<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>Append elements to Array by using the index</title><br />
</head><br />
<body><br />
<P><br />
<script language="javascript" type="text/javascript"><br />
<!--<br />
var myArray = new Array();<br />
myArray[0] = "AAA";<br />
myArray[1] = "BBB";<br />
myArray[2] = "CCC";<br />
for (var i=0; i<myArray.length; i++) {<br />
document.write("Element " +i+ " contains: " +myArray[i]+ "<br />");<br />
}<br />
//--><br />
</script><br />
</p><br />
</body><br />
</html></source><br />
<br />
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<br />
== Reference array element by random index value==<br />
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<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>Example</title><br />
</head><br />
<body><br />
<script type="text/javascript"><br />
function selectFrom(iFirstValue, iLastValue) {<br />
var iChoices = iLastValue - iFirstValue + 1;<br />
return Math.floor(Math.random() * iChoices + iFirstValue);<br />
}<br />
var aColors = ["A", "B", "C", "D", "E", "F", "G"];<br />
var index = selectFrom(0, aColors.length-1);<br />
var sColor = aColors[index];<br />
alert(sColor);<br />
</script><br />
</body><br />
</html></source><br />
<br />
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<br />
== Reference array value by index==<br />
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<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="javascript"><br />
<!--<br />
var days_of_week = new Array(7);<br />
days_of_week[0] = "Sunday";<br />
days_of_week[1] = "Monday";<br />
days_of_week[2] = "Tuesday";<br />
days_of_week[3] = "Wednesday";<br />
days_of_week[4] = "Thursday";<br />
days_of_week[5] = "Friday";<br />
days_of_week[6] = "Saturday";<br />
alert(days_of_week[2]);<br />
// --><br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Use for each loop to assign array element value==<br />
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<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="JavaScript"><br />
<!--<br />
var myarray = new Array("","","","","","","","","","");<br />
for (x in myarray)<br />
{<br />
myarray[x] = "img" + x + ".gif";<br />
}<br />
document.write(myarray);<br />
// --><br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Use variable as the array index==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="javascript"><br />
<!--<br />
var days_of_week = new Array(7);<br />
days_of_week[0] = "Sunday";<br />
days_of_week[1] = "Monday";<br />
days_of_week[2] = "Tuesday";<br />
days_of_week[3] = "Wednesday";<br />
days_of_week[4] = "Thursday";<br />
days_of_week[5] = "Friday";<br />
days_of_week[6] = "Saturday";<br />
var x = 2;<br />
alert(days_of_week[x]);<br />
// --><br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source></div>