Question

Hi I am new to javascript. I want to get the index of array using its value and append new element into that array. Here is my array:

var testArray=[];

testArray.push({"key1":"value1","key2":"value2"});
testArray.push({"key1":"value11","key2":"value22"});

Now I want to get the index of “value11” and also append new element as “key3″:”value33” in the same index as below:

testArray.push({"key1":"value11","key2":"value22","key3":"value33"});

Please explain. Thanks in advance…

Answer 1

var testArray=[];

testArray.push({"key1":"value1","key2":"value2"});
testArray.push({"key1":"value11","key2":"value22"});

var filtered = testArray.filter(function(item) {
    if (item.key1 == 'value11') {
        item.key3 = 'value33';
        return true
    }
    return false;
});

http://jsfiddle.net/XUzJw/