Create new array containing objects

Question

I wish to create a new array that contains objects from another Object

This was my try:

var obj = {
 a:{},
 b:{}
}
var arr = new Array().concat(obj,[]);

Sadly, this is returning an array like this:

Array[1]
0: Object
 a: Object
 b: Object

The desired array, however, should look like this:

Array[2]
 0: Object
 a: Object
 1: Object
 b: Object

How could i achieve that in the shortest possible way, without having to loop the object?

• JJJ: Could you show what the desired end result should look like?
• toniedzwiedz: Do you mean you want var arr = [obj.a, obj.b]; ?
• JJJ: Well, the question says you want [{a: obj.a}, {b: obj.b}].
• zerkms: "without having to loop the object" --- what is the technical reason for avoiding explicit loops in the code?
• Barmar: Could you explain what problem you're trying to solve by turning the object into an array? This sounds like an XY problem.

Answer 1

Here is an example without explicit loops:

var r = Object.keys(obj).map(function(key) {
 var o = {};
 o[key] = this[key];
 return o;
}, obj);

http://jsfiddle.net/zNh3G/