Replace named object with properties of that object

Question

I've been tinkering and was looking at for loops etc, then thought there's probably a quicker way to do this. Then I got lost in the lodash docs...

Anyway, I want to run over the following object—

{ stuff: { thing1: 'value1', thing2: 'value2', thing3: 'value3' }, something: 'value4' }

—and return:

{ thing1: 'value1', thing2: 'value2', thing3: 'value3', something: 'value4' }

That is, I want to eliminate the stuff level and have everything as siblings. In an easy / terse way, I mean. I tried _.flatten and ._flattenDepth but they only work with arrays (returns an empty array).

Thanks

baao · Accepted Answer · 2016-08-01 17:27:49Z

1

I think your best/only bet is a loop.

function flattenObject(obj, res) { res = res ? res : {}; Object.keys(obj).forEach(function(d) { if (typeof obj[d] === 'object') return flattenObject(obj[d], res); res[d] = obj[d]; }); return res; } console.log(flattenObject(a));

edited Aug 1, 2016 at 17:27

answered Aug 1, 2016 at 17:20

baao

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2 Comments

baao Over a year ago

res is the resulting object. In the function's first line I'm just checking if res is passed (already an object), and if not, I create a new empty one. @heydon

heydon Over a year ago

Oh, okay. My reading! I missed that res was in the return line.

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