30-seconds-of-code/snippets/similarity.md

title, tags

title	tags
similarity	array,math,beginner

Returns an array of elements that appear in both arrays.

Use Array.prototype.filter() to remove values that are not part of values, determined using Array.prototype.includes().

const similarity = (arr, values) => arr.filter(v => values.includes(v));

similarity([1, 2, 3], [1, 2, 4]); // [1, 2]