I have a variable in jquery as follows:

var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };

Is there a way to get value by key WITHOUT iteration.

In my original scenario, the variable "obj" contain lots of entries. And will be called frequently. So looping using $.each will cause performance issue.

If there is another way to declare the above variable, then i can do that also. So if anyone have any other method to get value by key WITHOUT looping, then can you please share.

Thanks in advance.

I have a variable in jquery as follows:

var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };

Is there a way to get value by key WITHOUT iteration.

In my original scenario, the variable "obj" contain lots of entries. And will be called frequently. So looping using $.each will cause performance issue.

If there is another way to declare the above variable, then i can do that also. So if anyone have any other method to get value by key WITHOUT looping, then can you please share.

Thanks in advance.

• javascript
• jquery

3 Answers 3

You can use

var obj = { one: 1, two: 2, three: 3, four: 4, five: 5 };
console.log(obj.one); // 1
console.log(obj['two']); // 2

DEMO.

Without iteration, then you have to do it directly like

obj.one = 1
obj.two = 2
obj.three = 3
...

You can use the member operator(Dot Notation or Bracket Notation) to do it, there is no need for iteration here

obj.one will give 1 same as obj.two will give 2 Ex:

console.log(obj1.one);
console.log(obj1.two);

or if the key is stored in a different variable like var key = 'one' then obj[key] will give 1

var key = 'three';
console.log(obj1[key]);