Underscore.js flatten object keys to array

Question

Supposing I have such object:

var obj = {
  'a': 'fizzle',
  'b': 'wizzle',
  'c': 'bum',
  'd': 'crum'
}

I would like to take the key names and flatten these into an array, like so:

// -> ['a', 'b', 'c', 'd'];

I could achieve this with a simple object loop, however I am wondering if there is a common underscore utility that could turn it into a one-liner. I looked through the underscore functions and couldn't find one for this.

Sushanth -- · Accepted Answer · 2015-02-28 00:59:34Z

2

You could just use Object.keys() method available on the native Object constructor , Which outputs the original objects own enumerable properties.

Object.keys(obj);

answered Feb 28, 2015 at 0:59

Sushanth --

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2 Comments

dthree Over a year ago

Damn, 7 years of web dev and somehow I've never seen that before. Thanks a bunch.

Sushanth -- Over a year ago

@dc2 . Sure no worries.. It happens with everyone once in a while :)

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