CODEWITHSUNDEEP
javascriptarrays
across
across

Reputation: 157

How to iterate array while splicing

I have an array INTERVALS and I want to remove a subset of elements from this array. I tried using for loop and splice, but it is not working as desired. It seems the for loop should not modify the array. Any help?

function remove_intervals(list) {
  for(i=0; i < INTERVALS.length; i++) {
    var o = INTERVALS[i];
    if(o in list) {
      clearInterval(o);
      INTERVALS.splice(i,1);
    }
  }
}

Upvotes: 0

Views: 270

Answers (2)

marno11
marno11

Reputation: 571

Could you do this using a the filter and inccludes methods to create a new array

const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const toRemove = ['limit', 'elite', 'destruction'];

const result = words.filter(word => toRemove.includes(word));

console.log(result);
// expected output: Array ['spray', 'exuberant', 'present'];

Upvotes: 1

Robo Robok
Robo Robok

Reputation: 22683

You can use Array.prototype.filter like this:

function remove_intervals(list) {
    INTERVALS = INTERVALS.filter(id => {
        if (id in list) {
            clearInterval(id);
            return false;
        }

        return true;
    });
}

Upvotes: 2

Related Questions