Javascript how do i dynamically find keys in my array?

January 10, 2022

I’m trying to find all the keys that are in my array to figure out if some keys already exist in there. Tho when I try to put in the keys seperate like this:

console.log(this.UrlArray.find(({color_ids}) => color_ids));

It works, but if I try doing it with the variable with the actual keys in it:

console.log(this.UrlArray.find(({prefixEqual}) => prefixEqual));

It doesn’t work. The values that belong to the keys aren’t important, but I stil can’t figure out how to do it.

Array example:

(3) [{…}, {…}, {…}]
  0:
    bd_shoe_size_ids: Array(2)
      0: "6601"
      1: "6598"
    length: 2
    [[Prototype]]: Array(0)
    [[Prototype]]: Object
  1:
    color_ids: Array(2)
      0: "6056"
      1: "6044"
    length: 2
    [[Prototype]]: Array(0)
    [[Prototype]]: Object
  2:
    manufacturer_ids: Array(2)
      0: "5875"
      1: "5866"
    length: 2
    [[Prototype]]: Array(0)
    [[Prototype]]: Object
  length: 3
[[Prototype]]: Array(0)

I asked something like this before, but I got linkes to answers that had nothing to do with what I’m trying to do and it closed.

As desired outputs I just wanna see bd_shoe_size_ids, color_ids and manufacturer_ids when I console log it.

>Solution :

const data = [
    { bd_shoe_size_ids: [1, 2] },
    { color_ids: [3, 4] },
    { manufacturer_ids: [5, 6] },
];

const output = data.map(Object.keys).flat();

console.log(output);