如何篩選與jQuery.grep（）

Question

我有一個是這樣的一個JSON對象多維JSON對象：

{"data": 
[ 
    {"name":"Alan","height":"171","weight":"66"}, 
    {"name":"Ben","height":"182","weight":"90"}, 
    {"name":"Chris","height":"163","weight":"71"} 
] 
,"school":"Dover Secondary" 
} 

我想過濾的JSON對象獲得比那些更高的數據170並且重於70，然後對這個物體進行分類。從jQuery website，據我所知，過濾會很容易的線性陣列上的東西，如實現：

arr = jQuery.grep(arr, function(element, index){ 
    return (element > 70 && index = 'weight'); 
}); 

如何過濾重量和高度同時得到這個：

{"data": 
[ 
    {"name":"Ben","height":"182","weight":"90"}, 
] 
,"school":"Dover Secondary" 
} 

Answer 1

我想你這意味着：http://jsfiddle.net/NRuM7/1/。

var obj = {"data": 
[ 
    {"name":"Alan","height":"171","weight":"66"}, 
    {"name":"Ben","height":"182","weight":"90"}, 
    {"name":"Chris","height":"163","weight":"71"} 
] 
,"school":"Dover Secondary" 
}; 

obj.data = jQuery.grep(obj.data, function(element, index){ 
    return element.weight > 70 && element.height > 170; // retain appropriate elements 
});