Jquery grep and filtering against other array

Question

I wanted to ask, how can i filter data using Jquery and grep?

Some example code:

var arr = ['11','21']

obj = $.grep(obj, function (element, index) {
        return element.Id == 11;
    });

This will return obj data with id of 11. But, how can i retrieve data from obj, when Id will be like arr array ?

So i wanted, to have obj with properties equal to Id 11 and 21 ?

Thank You.

So it is like an or conditional? Id == arr[0] || Id == arr[1] ? — Taplar
– Taplar, Commented May 22, 2015 at 11:25

Arun P Johny · Accepted Answer · 2015-05-22 11:25:48Z

1

Use Array.indexOf()

var arr = ['11', '21']

obj = $.grep(obj, function (element, index) {
    return arr.indexOf(element.Id + '') > -1;//the + '' is used since the array has string values
    //or $.inArray(element.Id + '', arr) > -1
});

$.inArray()

answered May 22, 2015 at 11:25

Arun P Johny

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Andy · Accepted Answer · 2015-05-22 11:56:18Z

0

You can also use JavaScript's own native filter method to achieve the same result:

var arr = obj.filter(function (el) {
    return arr.map(Number).indexOf(el.Id) > -1;
});

answered May 22, 2015 at 11:56

Andy

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