Steven Mascaro wrote:
One last issue. I was going to leave it till later, but I realised it
may affect ES4.
The nicest syntax for named arguments would be to use ':', just like
with object literals. e.g.:
/// Define
function foo(arg1 = 0, arg2 = 1) { ... }
/// Call
foo(arg2: 10,
One last issue. I was going to leave it till later, but I realised it
may affect ES4.
The nicest syntax for named arguments would be to use ':', just like
with object literals. e.g.:
/// Define
function foo(arg1 = 0, arg2 = 1) { ... }
/// Call
foo(arg2: 10, arg1: 5);
(I find this even more
On 29/02/2008, Lars Hansen [EMAIL PROTECTED] wrote:
What I meant was an assignment operator so that I could write:
{ xProp: x, yProp: y } ?= { xProp: 10, yProp: 20 };
and x and y would be overwritten only if their values were undefined.
C# has a similar operator for conditional
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brendan Eich
Sent: 28. februar 2008 03:47
To: Steven Mascaro
Cc: es4-discuss@mozilla.org
Subject: Re: Default argument values
On Feb 27, 2008, at 6:35 PM, Steven Mascaro wrote
2008/2/29 Brendan Eich [EMAIL PROTECTED]:
On Feb 28, 2008, at 7:29 AM, Lars Hansen wrote:
In fact the RI doesn't work as one would like it to, as the third test
below shows:
function h({x:x, y:y} = { x:10, y:20 }) [x,y]
h({x:1,y:2})
1,2
h()
10,20
h({x:1})
1,
Functions can take optional arguments (they have default values) and
rest arguments:
function f(x, y=0) { ... } // y is optional
What is the opinion on Python-style named arguments? i.e.:
def f(x = 0, y = 0):
...
f(y = 2)
The calling syntax for ES4 would obviously have to be
On Feb 27, 2008, at 5:22 PM, Steven Mascaro wrote:
Anyway, I'm sure you know the advantages (and disadvantages?) to
optional named arguments. I was just wondering whether they had been
considered for ES4, or if considered and rejected, then why. I've
searched the wiki and mailing list, but
On Feb 27, 2008, at 6:35 PM, Steven Mascaro wrote:
This is not to knock named parameters, just to explain why they
never
made it into a serious proposal in the modern ES4 era.
That sounds fine. The only thing it misses is interchanging positional
and named parameters, but that's no big
On Feb 27, 2008, at 6:56 PM, Steven Mascaro wrote:
2008/2/28 Brendan Eich [EMAIL PROTECTED]:
function h({p:x,q:y} = {p:3,q:4}) [x,y]
h()
3,4
Unfortunately, it doesn't work when you want to specify a subset of
the optional parameters. e.g.:
h({p:1})
1,
True -- it's not the same as
