The impediment that I recall during ES3.1 days was the accumulator
parameter to reduce/reduceRight, which wants to come immediately after
the callback function. Both are mandatory, whereas |thisValue|
("context", shudder) is optional. So accumulator won.
As for .bind's cost, let's remember Knuth:
http://en.wikipedia.org/wiki/Program_optimization#When_to_optimize.
/be
Andrea Giammarchi wrote:
Rick you know bind is that slow and it costs on GC if used massively ;-)
I use a lot the second argument in Array#extras and I feel Peter van
der Zee here: reduce/Right should have had that too
br
On Mon, Jan 7, 2013 at 1:10 PM, Rick Waldron <[email protected]
<mailto:[email protected]>> wrote:
I know this doesn't answer your question, but
Function.prototype.bind makes thisArg obsolete.
Regarding the origin story, there is some discussion here:
https://mail.mozilla.org/pipermail/es-discuss/2008-June/006431.html
Rick
On Mon, Jan 7, 2013 at 3:56 PM, Andrea Giammarchi
<[email protected] <mailto:[email protected]>>
wrote:
I think to increase confusion with other Array#extras :D
and since we have this specced as it is now, a third parameter
for the context could add even more confusion later on <3
I know, I should not have answered that ...
On Sun, Jan 6, 2013 at 9:48 AM, Peter van der Zee
<[email protected] <mailto:[email protected]>> wrote:
Mostly out of curiosity; why do Array#reduce and
reduceRight have no
context parameter?
- peter
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