array-deleteWhere.ts

const items = [1, 2, 3, 4];
//before
const itemsForDelete = items.filter(item => item % 2 === 0);
itemsForDelete.forEach(item => {
  const index = items.indexOf(item);
  items.splice(index, 1);
})
//after
items.deleteWhere(item => item % 2 === 0);