jquery 对 Json 的各种遍历

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grep

<script type='text/javascript' src="/jquery.js"></script><script type="text/javascript">$().ready(function(){var array = [1,2,3,4,5,6,7,8,9];var filterarray = $.grep(array,function(value){return value > 5;//筛选出大于5的});for(var i=0;i<filterarray.length;i++){alert(filterarray[i]);}for (key in filterarray){alert(filterarray[key]);}});</script>

each

<script type='text/javascript' src="/jquery.js"></script><script type="text/javascript">$().ready(function(){var anObject = {one:1,two:2,three:3};//对json数组each$.each(anObject,function(name,value) {alert(name);alert(value);});var anArray = ['one','two','three'];$.each(anArray,function(n,value){alert(n);alert(value);});});</script>

inArray

<script type='text/javascript' src="/jquery.js"></script><script type="text/javascript">$().ready(function(){var anArray = ['one','two','three'];var index = $.inArray('two',anArray);alert(index);//返回该值在数组中的键值，返回1alert(anArray[index]);//value is two});</script>

map

<script type='text/javascript' src="/jquery.js"></script><script type="text/javascript">$().ready(function(){var strings = ['0','1','2','3','4','S','6'];var values = $.map(strings,function(value){var result = new Number(value);return isNaN(result) ? null:result;//isNaN:is Not a Number的缩写});for (key in values) {alert(values[key]);}});</script>

遍历json对象：

<script>var json = [{dd:'SB',AA:'东东',re1:123},{cccc:'dd',lk:'1qw'}];for(var i=0,l=json.length;i<l;i++){for(var key in json[i]){alert(key+':'+json[i][key]);}}</script>

遍历json对象

有如下 json对象：var obj ={”name”:”冯娟”,”password”:”123456″,”department”:”技术部”,”sex”:” 女”,”old”:30};遍历方法：for(var p in obj){str = str+obj[p]+’,';return str;}

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