Issue removing first element of array with Javascript

Question

I'm trying to find an element in an array, remove that element if found, and then add that element at the start of the array.

However when I log my array sortedAdv returns as only one element length for some reason

My code:

let advantages = [ 'liked', 'sendUnlimitedLikes', 'unlockSundays', 'getBoosted', 'filters', 'revealAllProfiles', 'wholeCountry', 'exlusiveBlogs' ];
 
console.log('advantages', advantages.length);

let index = advantages.findIndex((advantage) => advantage == type);
if (index > -1) {
  console.log('index', index);
  let sortedAdv = advantages.splice(index, 1);
  console.log('sortedAdv', sortedAdv.length);
  sortedAdv.unshift(type);
  console.log('sortedAdv', sortedAdv.length);
  this.setPurchaseAdvantages(sortedAdv);
}

splice returns the removed elements, not the original array. — pilchard, Jun 05 '23 at 23:07
Does this answer your question? [Move element to first position in array](https://stackoverflow.com/questions/50186075/move-element-to-first-position-in-array) — pilchard, Jun 05 '23 at 23:09
also [Move an array element from one array position to another](https://stackoverflow.com/questions/5306680/move-an-array-element-from-one-array-position-to-another) — pilchard, Jun 05 '23 at 23:09

score 0 · Answer 1 · answered Jun 05 '23 at 22:54

you are geting an array when you are using this

let removedElement = advantages.splice(index, 1);

let advantages = ['liked', 'sendUnlimitedLikes', 'unlockSundays', 'getBoosted', 'filters', 'revealAllProfiles', 'wholeCountry', 'exlusiveBlogs'];
let type = 'getBoosted'; 
let index = advantages.indexOf(type); // Find the index of the element
if (index > -1) {
  let removedElement = advantages.splice(index, 1)[0]; // Remove the element and store it
  advantages.unshift(removedElement); // Add the element to the start of the array
}

console.log(advantages);

Issue removing first element of array with Javascript

1 Answers1