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1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Sunday, 11-Feb-2018 11:22:56 EST ∑ XahLee

   #JavaScript understand the complexity of Array Constructor

   • new Array(…) → same as Array(…)
   • Array() → same as []
   • Array(n) → if n is 0 or 1, 2 etc, same as y=[];y.length=n. Else, same as [x].
   • Array(a1,a2,a3) → same as [a1,a2,a3]

   Examples:
   http://xahlee.info/js/js_array_constructor.html

   1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Tuesday, 13-Feb-2018 01:52:33 EST ∑ XahLee

      in reply to

      #JavaScript, understand Class like a Mathematician (updated)
      http://xahlee.info/js/javascript_class.html

      1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Tuesday, 13-Feb-2018 12:32:53 EST ∑ XahLee

         in reply to

         #JavaScript In Depth, learn RegExp in 10 minutes, for beginner http://xahlee.info/js/js_regex_tutorial.html

         1. ∑ XahLee (xahlee@noagendasocial.com)'s status on Wednesday, 14-Feb-2018 12:40:29 EST ∑ XahLee

            in reply to

            #JavaScript in Depth, understand ES2015 Array.prototype.copyWithin
            http://xahlee.info/js/js_Array.prototype.copyWithin.html