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pullAtValue

JS TODO

Mutates the original array to filter out the values specified. Returns the removed elements.

Use Array.prototype.filter() and Array.prototype.includes() to pull out the values that are not needed. Use Array.prototype.length = 0 to mutate the passed in an array by resetting it's length to zero and Array.prototype.push() to re-populate it with only the pulled values. Use Array.prototype.push() to keep track of pulled values

const pullAtValue = (arr, pullArr) => {
let removed = [],
pushToRemove = arr.forEach((v, i) =>
pullArr.includes(v) ? removed.push(v) : v
),
mutateTo = arr.filter((v, i) => !pullArr.includes(v));
arr.length = 0;
mutateTo.forEach((v) => arr.push(v));
return removed;
};
let myArray = ["a", "b", "c", "d"];
let pulled = pullAtValue(myArray, ["b", "d"]); // myArray = [ 'a', 'c' ] , pulled = [ 'b', 'd' ]