30-seconds-of-code/snippets/js/s/array-similarity.md

title, type, language, tags, cover, dateModified

title	type	language	tags	cover	dateModified
Array similarity	snippet	javascript	array math	dark-leaves-5	2020-10-22T20:24:30+03:00

Returns an array of elements that appear in both arrays.

• Use Array.prototype.includes() to determine values that are not part of values.
• Use Array.prototype.filter() to remove them.

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

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