Menu

gitpiper

unionWith javascript Code Snippet in 2022

arrayintermediate

Last Updated: 25 September 2022

Returns every element that exists in any of the two arrays at least once, using a provided comparator function.

  • Create a new Set() with all values of a and values in b for which the comparator finds no matches in a, using Array.prototype.findIndex().
const unionWith = (a, b, comp) => Array.from( new Set([...a, ...b.filter(x => a.findIndex(y => comp(x, y)) === -1)]) );
unionWith( [1, 1.2, 1.5, 3, 0], [1.9, 3, 0, 3.9], (a, b) => Math.round(a) === Math.round(b) ); // [1, 1.2, 1.5, 3, 0, 3.9]

javascript snippet similar to unionWith For You in September 2022

Subscribe to our Newsletter

Subscribe to get resources directly to your inbox. You won't receive any spam! ✌️

© 2022 GitPiper. All rights reserved

Rackpiper Technology Inc

Company

About UsBlogContact

Subscribe to our Newsletter

Subscribe to get resources directly to your inbox. You won't receive any spam! ✌️