Merging objects

Question

I am trying to merge the objects recursively.

what I have

arrayOfObjects = [{a1:{aa:k1}},{a1:{ab:k2}},{a1:{ac:k3}},{a1:{aa:k4}},{a1:{ab:k5}}];

what I need is

{a1:{aa:k1,ab:k2,ac:k3,aa:k4,ab:k5}}

I made a function

function merg(array){ value = {}; if(array.length>0){ $.each(array, function (i) { value = $.extend(true,{},value,array[i]); }); } return value; }; console.log(merg(arrayOfObjects));

what I get is

{a1:{aa:k1,ab:k2,ac:k3}}

aa:k4,ab:k5 are missing(may due to same key value )

if the deep merge is false I get only one value

value = $.extend({},value,array[i]); {a1:{aa:k1}}

You can't have duplicate keys in an object. Objects are maps whose keys are unique. You could merge duplicate keys into arrays, but not duplicates keys twice. It's senseless, ask yourself how do you expect to access a1.aa. Which value do you expect to get, is it k1 or k4? How do you differ them? — mati.o
– mati.o, Commented Jun 7, 2019 at 15:12

Prince Devadoss · Accepted Answer · 2019-06-07 15:19:59Z

We can make use of Symbols,

var arr = [{a1:{aa:'k1'}},{a1:{ab:'k2'}},{a1:{ac:'k3'}},{a1:{aa:'k4'}},{a1:{ab:'k5'}}];; var op = {}; var result = {}; var globalKey; arr.forEach((ar) => { var [key, value] = Object.entries(ar)[0]; globalKey = key; var [innerKey, innerValue] = Object.entries(value)[0]; op[Symbol(innerKey)] = innerValue; }); result[globalKey] = op; console.log(result);

Collectives™ on Stack Overflow

Merging objects

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related