Compare objects in two arrays and return based on match in javascript

Question

I am using React for this, but the concept is in javascript. So hopefully I can leave React code out for simplicity sake.

I have two arrays that I need to filter out. My

Answer 1

You could use filter on the first array ,and includes on the second array:

arr1
  .filter(e => arr2.map(e2 => e2.id).includes(e.id))
  .map(e => return (
Match
));