Converting simple logic using filter in javascript

Question

I am new to ES6 features and trying to apply filter logic in my code. My current code with forEach works but I am applying filter something like below:

export function filterContactList(itemArray: any[]) {
const list = [];
if (itemArray.length > 0) {
itemArray.forEach(item => {
  if (contactIds.includes(item.id)) {
    list.push(item);
  }
});
}
return list;
}

// what I am trying to replace with:

itemArray(item => contactIds.includes(item.id))

Answer 1

You could filter the array.

return itemArray.filter(item => contactIds.includes(item.id));