How to check if an array of objects contains all the ids of another array of objects JS

user_14096323 0
Viewed 3821

I have 2 arrays of Objects;

// First one :
[0: {id: 1},
1: {id: 2},
2: {id: 3},
3: {id: 4}]

// Second one :
[0: {id: 10},
1: {id: 1},
2: {id: 4},
3: {id: 76},
4: {id: 2},
5: {id: 47},
6: {id: 3}]

I'd like to test if the second one has at least every same IDs of the first one. Which would be true in this case because the second one contains 1, 2, 3 and 4 IDs.

I tried to use some() and every() but it doesn't work properly

My try :

let res = this.trainingEpisodesList.some( episode => {
    this.completedEpisodes.every( userEpisode => {
         userEpisode.id == episode.id;
     })
});

Thanks ;)

verification object foreach arrays javascript
2 Answers

ES7,

let result = one.map(a => a.id);
let result2 = two.map(a => a.id);
const final_result = result.every(val => result2.includes(val));

ES5,

var result = one.map(a => a.id);
var result2 = two.map(a => a.id);

var final_result = result.every(function(val) {

  return result2.indexOf(val) >= 0;

});
user_49906420

You can do this using every and find:

let completedEpisodes = 
[
{id: 1},
{id: 2},
{id: 3},
{id: 4}
]

let trainingEpisodesList = 
[
{id: 10},
{id: 1},
{id: 4},
{id: 76},
{id: 2},
{id: 47},
{id: 3}
]

let containsAllCompleted = trainingEpisodesList.every(c => completedEpisodes.find(e=>e.id==c.id));

console.log(containsAllCompleted);

user_74863130
Related