使用underscore.js搜索对象数组内部的字符串

Question

I want to search the String inside an object using underscore.js

JSON data

{ data:
       [ 
         {'id': 1, 'name': 'New Samsung Galaxy 3' },
         {'id': 2, 'name': 'Samsung Grand'},  
         {'id': 3, 'name': 'Galaxy 3 dress new Arrival'}, 
         {'id': 4, 'name': 'Samsung Galaxy 3 black ' }, 
         {'id': 5, 'name': 'Samsung refrigerators'} 
        ];
 }

Let Suppose I have a keyword Samsung Galaxy 3 . I want it return the matching string only.

Like This Output :

{ data:
       [ 
          {'id': 1, 'name': 'New Samsung Galaxy 3' },
          {'id': 4, 'name': 'Samsung Galaxy 3 black ' }, 
       ];
 }

Answer 1

Use _filter .

var data =
       [ 
         {'id': 1, 'name': 'New Samsung Galaxy 3' },
         {'id': 2, 'name': 'Samsung Grand'},  
         {'id': 3, 'name': 'Galaxy 3 dress new Arrival'}, 
         {'id': 4, 'name': 'Samsung Galaxy 3 black ' }, 
         {'id': 5, 'name': 'Samsung refrigerators'} 
        ];

    _.filter(data, function(item) { 
       return item.name.indexOf("Samsung Galaxy 3") != -1; 
    });

Answer 2

You can use _filter or _where

_filter: Return all the elements that pass a truth test. Similarly as select .

_where: Convenience version of a common use case of filter . Selecting only objects containing specific key:value pairs.

http://jsfiddle.net/yqagfLqb/

var data =
   [ 
     {'id': 1, 'name': 'New Samsung Galaxy 3' },
     {'id': 2, 'name': 'Samsung Grand'},  
     {'id': 3, 'name': 'Galaxy 3 dress new Arrival'}, 
     {'id': 4, 'name': 'Samsung Galaxy 3 black ' }, 
     {'id': 5, 'name': 'Samsung refrigerators'} 
    ];

_.where(data, function(item) { 
   return item.name.indexOf("Samsung Galaxy 3") != -1; 
});

console.log(data);