Returns an Array object whose elements have been sorted.
arrayobj.sort(sortfunction) Parameters arrayObj Required. Any Array object. sortFunction Optional. is the name of the function used to determine the order of elements. If this parameter is omitted, then the elements will be sorted in ascending ASCII character order. Description The sort method sorts Array objects appropriately; No new Array objects are created during execution.
If a function is provided for the sortfunction argument, the function must return one of the following values:
A negative value if the first argument passed is smaller than the second argument. Zero if the two arguments are equal. Positive value, if the first parameter is larger than the second parameter. Demo1 (default alphabetical order):
< ;script language="javascript"> var nameArr = new Array("douguoqiang","hedan","redhacker","panliu888","maxuan","xuejianping","lanse","zhangsan", "lisi","wangwu"); nameArr.sort(); for (var i = 0; i < nameArr.length; i ) { document.writeln(nameArr[i]) ; With parameters):
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The code is as follows:
<script> <a style="CURSOR: pointer" data="83313" class="copybut" id="copybut83313" onclick="doCopy('code83313')"> var numArr = new Array(12,23,1,4,23,34,2,5); <u> numArr.sort(function compare(a,b){return a-b;}); </u> for (var i = 0; i<numArr.length; i ) { </a> document.write(numArr[i] "<br>"); } </a>
</div></script>
Results: 1 2 4 5 12
23 23 34
Demo3 (Demo3 reverse sorting ):
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The code is as follows:
<script> <a style="CURSOR: pointer" data="61287" class="copybut" id="copybut61287" onclick="doCopy('code61287')"> var numArr = new Array(12,23,1,4,23,34,2,5); <u> numArr.sort(function compare(a,b){return b-a;}); </u> for (var i = 0; i<numArr.length; i ) { </a> document.write(numArr[i] "<br>"); </a></span> } </div></script>
Result: 34 23 23 12 5
4 2 1
Demo4 (the second version of Demo3 Writing method):
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The code is as follows:
<script> <a style="CURSOR: pointer" data="808" class="copybut" id="copybut808" onclick="doCopy('code808')"> var numArr = new Array(12,23,1,4,23,34,2,5); <u> numArr.sort(new Function("a","b","return a-b;")); </u> for (var i = 0; i<numArr.length; i ) { </a> document.write(numArr[i] "<br>"); </a></span> } </div></script>
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