- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Thu, 27 Jun 2013 15:59:18 -0700
- To: Boris Zbarsky <bzbarsky@mit.edu>
- Cc: "public-script-coord@w3.org" <public-script-coord@w3.org>
On Thu, Jun 27, 2013 at 3:19 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote: > On 6/27/13 6:13 PM, Tab Atkins Jr. wrote: >>> How would one copy one Map into another in ES? Presumably whatever the >>> idiom is for that is how this should work... >> >> Using the constructor: >> >> var m2 = new Map(m1); > > That's if you're creating the copy yourself. How would you do it if you're > copying into a Map someone provided to you? Oh, there's no built-in method for that yet (like Python's Dict#update() method), so you'd use the first case I illustrated (manually iterating through the source map and setting the values into the destination map). ~TJ
Received on Thursday, 27 June 2013 23:00:05 UTC