git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 module.exports = function () {
   4         var arr = [1, 2, 3, 4, 5];
   5         if (typeof arr.copyWithin !== 'function') return false;
   6         return String(arr.copyWithin(1, 3)) === '1,4,5,4,5';
   7 };