Populate nested object from array?

Question

I have a question, how to create nested object from array? I.e. I have a following array:

var myArr = ['foo', 'bar', 'baz'] and need to make it an object like:

myObj = {foo: { bar: { baz: { } } }}

How can I do that properly?

AmmarCSE · Accepted Answer · 2015-12-02 22:55:51Z

4

var myArr = ['foo', 'bar', 'baz'];
var myObj = {};

myArr.reduce(function(a, b) {
  a[b] = {};
  return a[b];
}, myObj);

console.log(myObj);

answered Dec 2, 2015 at 22:55

AmmarCSE

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Comments

Mister Jojo · Accepted Answer · 2020-05-08 01:02:57Z

2

you can do better ! :

let arr = ['foo', 'bar', 'baz'];

let obj = arr.reduceRight((a,c)=>({[c]:a}),{})

document.write( JSON.stringify(obj) )

answered May 4, 2020 at 21:12

Mister Jojo

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