javascript remove item from array, if an item already existing in array

Question

following adds items to array:

var arrayOptions = [];

function AddToFilterOptionList(mode) {
    arrayOptions.push(mode);
    }

remove item fr

Answer 1

let items = [1, 2, 3, 2, 4, 5, 2, 7];
let item = 2;
for (let i = 0; i < items.length; i++) {
    if (items[i] === item) {
        items.splice(i, 1);
        i = i - 1;
    }
}

If you want to remove the element '2' from items array, it is a way.