remove multiple specific items from array

Question

I have an array like this:

let arr = ['liverpool', 'arsenal', 'man utd', 'chelsea', 'tottenham', 'crystal palace', 'madrid', 'barcelona'];

and I want to remove items, let's say 'arsenal' and 'chelsea', but this needs to be dynamic.

I have tried the following, where items is an array but unfortunately it didn't work:

function removeItems(items) {
   arr.filter(item => {
      return !arr.includes(items)
   });
}

removeItems(['arsenal', 'chelsea']);

`filter` returns a **new** array, it doesn't modify the array you call it on. So `removeItem` would need to return the result, and the call would have to assign the result to something. — T.J. Crowder, Aug 29 '19 at 16:10
@T.J.Crowder I did see that but this is a bit different as it is multiple items — peter flanagan, Aug 29 '19 at 16:10
@peterflanagan - Yes, it is. I've also added a more specific one. Frankly, this could also have been closed as "typo/non-repro/not-useful-to-others-in-future." This isn't worth a discussion. See above for what to do. Happy coding. — T.J. Crowder, Aug 29 '19 at 16:14

Chen.so · Accepted Answer · 2019-08-29T16:17:15.790

2

I think what you are trying to do is this:

function removeItems(items) {
   return arr.filter(item => {
      return !items.includes(item)
   });
}

const newArr = removeItems(['arsenal', 'chelsea']);

edited Aug 29 '19 at 16:17

answered Aug 29 '19 at 16:10

Chen.so

173
7

No, see [my comment](https://stackoverflow.com/questions/57714020/remove-multiple-specific-items-from-array#comment101870206_57714020). – T.J. Crowder Aug 29 '19 at 16:13
arr.filter returns the new array, not mutates it, edited – JBaczuk Aug 29 '19 at 16:13
this is exactly what I was looking for. Thanks very much for your help, answer makes sense. – peter flanagan Aug 29 '19 at 16:20

remove multiple specific items from array

1 Answers1