How to find index of an object by key and value in an javascript array

Question

Given:

var peoples = [
  { \"attr1\": \"bob\", \"attr2\": \"pizza\" },
  { \"attr1\": \"john\", \"attr2\": \"sushi\" },
  { \"attr1\": \"lar         


        

Answer 1

Do this way:-

var peoples = [
  { "name": "bob", "dinner": "pizza" },
  { "name": "john", "dinner": "sushi" },
  { "name": "larry", "dinner": "hummus" }
];

$.each(peoples, function(i, val) {
    $.each(val, function(key, name) {
        if (name === "john")
            alert(key + " : " + name);
    });
});

OUTPUT:

name : john

Refer LIVE DEMO

​