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JavaScript Tutorial/Array/Concat - История изменений
2026-04-04T06:10:59Z
История изменений этой страницы в вики
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Admin: 1 версия
2010-05-26T08:25:26Z
<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/Concat&diff=9800&oldid=prev
в 18:52, 25 мая 2010
2010-05-25T18:52:57Z
<p></p>
<p><b>Новая страница</b></p><div>== Actual success in copying an array using concat()==<br />
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<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>Actual success in copying an array using concat()</title><br />
<script type="text/javascript" language="javascript"><br />
<!-- //<br />
function CopyArray(){<br />
var myArray = new Array(1,2,3);<br />
var emptyArray = new Array();<br />
var myCopy = myArray.concat(emptyArray);<br />
myArray[0] = 10;<br />
myArray[1] = 20;<br />
myArray[2] = 30;<br />
var ma = myArray.join(", ");<br />
var mc = myCopy.join(", ");<br />
alert(ma);<br />
alert(mc);<br />
}<br />
// --><br />
</script><br />
</head><br />
<body onload="CopyArray()"><br />
</body><br />
</html></source><br />
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== Array.concat()==<br />
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Syntax<br />
array.concat(arg1,...argN)<br />
<p>The concat() method adds the elements listed in the parameter list to the end of the existing array and returns the result.</p><br />
<p>arg1,...argN contains one or more elements to be concatenated to the end of the array.</p><br />
<p>The original is not changed by this method.</p><br />
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<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<script language="JavaScript"><br />
<!--<br />
function displayElements(theArray)<br />
{<br />
for(i=0; i<theArray.length; i++)<br />
{<br />
document.write(" - ",theArray[i][1]," ");<br />
document.write(theArray[i][0],"<br>");<br />
}<br />
}<br />
shelf1 = new Array(["A",10],["B",25]);<br />
document.write("Shelf 1 contains:<br>");<br />
displayElements(shelf1);<br />
<br />
shelf2 = new Array(["C",50],["D",3],["E",8]);<br />
document.write("Shelf 2 contains:<br>");<br />
displayElements(shelf2);<br />
<br />
inventory = shelf1.concat(shelf2);<br />
document.write("<br>The total inventory contains:<br>");<br />
displayElements(inventory);<br />
--></script><br />
</html></source><br />
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== Using concat() method to combine two arrays==<br />
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<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>Using concat() method to combine two arrays</title><br />
<script type="text/javascript" language="javascript"><br />
<!-- //<br />
function ConcatArrays(){<br />
var firstArray = new Array(1,2,3);<br />
var secondArray = new Array(4,5,6);<br />
var combinedArray = firstArray.concat(secondArray);<br />
var fa = firstArray.join(", ");<br />
var sa = secondArray.join(", ");<br />
var ca = combinedArray.join(", ");<br />
document.write("<P>The first array contains: <b>" + fa + " </b></p>");<br />
document.write("The second array contains: <b>" + sa + " </b></p>");<br />
document.write("The combined array contains: <b>" + ca + " </b></p>");<br />
document.write("The combined array length is: <b>" + combinedArray.length + "<br />
</b></p>");<br />
}<br />
// --><br />
</script><br />
</head><br />
<body onload="ConcatArrays()"><br />
</body><br />
</html></source></div>