History of Array.prototype.keys() Revision history for: English (US) Jul 19, 2016, 1:03:49 PM eduardoboucas Add "Return value" section as per Bug 1287421 Previous Dec 25, 2015, 9:28:01 AM fscholz Remove {{harmony}}; remove "Experimental" tag; add link to ES draft spec Previous Jul 1, 2015, 5:26:01 PM fscholz fix compat parsing error; cleanup Previous Jun 15, 2015, 4:14:47 AM qcgm the keys are string not number Previous Jan 30, 2015, 11:01:05 PM ziyunfei Previous Dec 10, 2014, 1:03:03 AM arai Previous Oct 20, 2014, 12:33:41 AM Mingun Added {{CompatOpera}} template. Previous Oct 17, 2014, 8:38:04 AM realityking Supported in Opera 25 Previous Oct 8, 2014, 9:01:51 PM Mingun Added {{CompatChrome}} template, fixed broken “See also” header. Previous Oct 8, 2014, 2:48:30 PM realityking Supported by Chrome 38