remove an object from an object array in javascript

Question

I have an object which is like:

Object {w74: Object, w100: Object,w12: Object,w3: Object}

I need to eleminate one of them to have

Object {w74: Object, w100: Object,w3: Object}

How can remove this in javascript

• user5653854: delete <Object>[<index>] ?
• SD.: Duplicate of How do I remove objects from a javascript associative array?

Answer 1

Use the delete operator:

var ob = {w74: {number: 1}, w100: {number: 2},w12: {number: 3},w3: {number: 4}};
console.log(ob);
delete ob.w74;
console.log(ob);

Answer 2

You can directly delete your value from object by key value

eg.

  var arrChildOptions2 = {
 w74: Object, w100: Object,w12: Object,w3: Object
 };

delete arrChildOptions2.w12;

Answer 3

Use underscore library function called _.pick() http://underscorejs.org/#pick

_.pick({name: 'moe', age: 50, userid: 'moe1'}, 'name', 'age');
=> {name: 'moe', age: 50}
_.pick({name: 'moe', age: 50, userid: 'moe1'}, function(value, key, object) {
 return _.isNumber(value);
});
=> {age: 50}