History of Array.prototype.concat() Revision history for: English (US) Oct 19, 2016, 5:53:33 AM fscholz Previous Oct 18, 2016, 12:39:11 PM fscholz Previous Jul 20, 2016, 11:34:13 AM evan-carey Previous Jul 19, 2016, 9:53:27 AM eduardoboucas Add "Return value" section as per Bug 1287421 Previous Jul 11, 2016, 3:30:36 AM fscholz Previous Jul 11, 2016, 12:50:33 AM imrek Besides numbers and strings, booleans are also copied by value Previous Jun 14, 2016, 1:29:37 AM xueyio Previous May 10, 2016, 5:14:14 AM fscholz add link to isConcatSpreadable Previous Apr 19, 2016, 1:22:16 PM bergus Revert to revision of 2015-12-25 08:37:24 by fscholz: "Using `.call` is nothing special, it doesn't need to be mentioned in the documentation of `concat` (no less than in any other docs for builtin methods)." Previous Apr 15, 2016, 2:55:27 PM chrisranderson