On Mon, Jan 16, 2012 at 12:09 PM, David Bruant <[email protected]> wrote: > Thinking more about the current semantics, I thought that what is > currently done could be achieved a bit differently: > ----- > var v = wm.get(o, def); > // almost equivalent to: > var v = wm.get(o) || def; > -----
This is a very common semantic in dictionaries, and it's extremely useful. I recommend adding it, either to get() as you describe, or in a second function. Python implements it both ways - the get() function can take a second "default" value that is returned if the key is not in the dict, and it provides a setdefault() function that sets the key if and only if it's not already set, and then returns the key's value. ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
