How can I verify if 2 JavaScript Objects have the same keys or not

Question

I'm trying to compare 2 large JavaScript Objects with almost ~200 keys each, the keys are unordered, and have different values for each of the JavaScript Objects, but I only care about the keys if they both have the same set of keys that function would still return true even if they're in different order

I tried the following code but didn't work

var cp = function (nl,en) {
let x= Object.keys(nl);
let y= Object.keys(en);
for (xel in x){
    if (!y[xel]){
        console.log("missing key en ", xel);
    }
}}

Example:

{"key1": "val", "key2": "sdsfaf"}
{"Key2": "val", "key1": "vsdsdsd"}
This should return true
{"key1": "val", "key2": "sdsfaf"}
{"Key2": "val"}
This shouldn't

`Object.keys(arr)` and then go through them element by element. — Sirko, Aug 26 '20 at 15:42
list all the keys, sort the key lists, join sorted key lists each into a string, compare strings for equality ... `Object.keys(nl).sort().join(',') === Object.keys(en).sort().join(',')` — Peter Seliger, Aug 26 '20 at 15:56

score 0 · Accepted Answer · answered Aug 26 '20 at 15:45

0

Grab sets of the objects' keys with new Set(Object.keys(a)) and new Set(Object.keys(b)).

Then compare them with eg. comparing ECMA6 sets for equality

answered Aug 26 '20 at 15:45

AKX

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How can I verify if 2 JavaScript Objects have the same keys or not

1 Answers1