How to loop over all elements of an array inside an object in array of objects?

Question

I have an array of objects

myArrayOfObjects = [
  0: {
    title: 'title 1',
    ids: ['90b7f1804642', 'ffa339e9aed7']
  },
  1: {
    title: 'test 2',
    ids: ['99472a9cb432', 'ec3d70ea6ef8']
  }
];

I want to check each of the values in ids array if they match an id I have outside. This is what I came up with:

myArrayOfObjects.forEach((item, index) => {
    if(item.ids[index] === this.myId) {
      console.log('SUCCESS');
    }
})

But it does not go through all of the values in ids array. What is the appropriate way to solve this?

let myArrayOfObjects = [0: 'value'] is not how you create arrays (you're also missing some quotes) — Kevin Jantzer
– Kevin Jantzer, Commented Oct 8, 2018 at 19:41

Steve Archer · Accepted Answer · 2018-10-08 19:43:19Z

1

The index you're using there is the index of the current item that the forEach is on, not an index in the ids array. You could do another forEach on that ids array, or just a .includes looks nicer, I think:

myArrayOfObjects.forEach((item, index) => {
    if(item.ids.includes(this.myId)) {
      console.log('SUCCESS');
    }
})

answered Oct 8, 2018 at 19:43

Steve Archer

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Vlad274 · Accepted Answer · 2018-10-08 19:41:42Z

0

You need to loop over the array inside the array

myArrayOfObjects.forEach((item) => {
    item.ids.forEach((id) => {
        if(id === this.myId) {
          console.log('SUCCESS');
        }
    });
})

answered Oct 8, 2018 at 19:41

Vlad274

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2 Comments

Kevin Jantzer Over a year ago

Problem is OP's myArrayOfObjects is not a valid array

Steve Archer Over a year ago

Yeah, I see what you're saying, but I'm assuming he copy pasted it from a browser console that shows the indexes as though they were keys

Sergii Vorobei · Accepted Answer · 2018-10-08 19:42:09Z

0

Please try:

myArrayOfObjects.forEach((item, index) => {

  if(item.ids.includes(this.myId)) {
  //or if(item.ids.indexOf(this.myId) > -1) {
    console.log('SUCCESS');
  }
})

answered Oct 8, 2018 at 19:42

Sergii Vorobei

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