jquery遍历数组方法和简单遍历json对象的示例代码汇总

$().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]); 
} 
} 
);

$().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); 
} 
); 
} 
);

$().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1 
alert(anArray[index]);//value is two 
} 
);

$().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]); 
} 
} 
);

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]); 
} 
}

for(var p in obj){ 
str = str+obj[p]+','; 
return str; 
}

var str = '[{"name":"宗2瓜","num":"1","price":"122"},{"name":"宗呱呱","num":"1","price":"100"}]';
var xqo = eval('(' + str + ')');
for(var i in xqo){
　　alert(xqo[i].name);
}

var cc = jQuery.parseJSON(data);
alert(cc[0].title);