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根据数组中某个参数的值的大小进行升序       

 

	<script type="text/javascript">function compare(val) {return function (a, b) {var value1 = a[val];var value2 = b[val];return value1 - value2;}}var arr =[{a:3},{a:2},{a:1},{a:4},{a:6},{a:0}];arr.sort(compare('a'));console.log(arr);</script>

打印结果"[{"a":0},{"a":1},{"a":2},{"a":3},{"a":4},{"a":6}]"

 

取数组中最小值    打印结果 1

 

	<script type="text/javascript">var arr =[1,2,3,4,5,6];var b= Math.min.apply(null, arr)console.log(b)</script>

 

 

取数组中最大值   打印结果 6

 

	<script type="text/javascript">var arr =[1,2,3,4,5,6];var b= Math.max.apply(null, arr)console.log(b)</script>

 

 

根据数组中某个参数的值的大小进行倒序

 

	<script type="text/javascript">var arr =[{a:3},{a:2},{a:1},{a:4},{a:6},{a:0}];arr.sort(compare('a')).reverse();console.log(JSON.stringify(arr));function compare(val) {return function (a, b) {var value1 = a[val];var value2 = b[val];return value1 - value2;}}</script>

打印结果"[{"a":6},{"a":4},{"a":3},{"a":2},{"a":1},{"a":0}]"

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