Re: defining functions

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From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
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Date	Sat, 05 Nov 2011 14:46:12 +0100
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Subject	Re: defining functions
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Richard Cornford wrote:

> Denis McMahon wrote:
>> [FunctionExpression vs. FunctionDeclaration]
> 
> In terms of this style of function call there is no advantage of one
> over the other.
> 
> The advantages of one over the other are that the function declaration
> is less code to write and the actual creation of the function object
> will occur unconditionally upon entering the execution context in which
> the declaration occurs. Assigning a function expression to a variable is
> necessary if the function is to be created conditionally.

To be precise, it is necessary to use a /FunctionExpression/ if the function 
is to be defined in a /Block/ statement.  Although several ECMAScript 
implementations, among them JavaScript 1.3, JScript 3.1.3510, JavaScriptCore 
525.13, Opera ECMAScript 5.02, and KJS 3.5.9, include(d) proprietary support 
for /FunctionDeclaration/ in a /Block/ statement (termed and dealt with as a 
"function statement"), such code is not portable and therefore best avoided.  
(Note that the braces of /Block/ statements are easily confused with the 
braces of a /FunctionBody/; this restriction and recommendation does _not_ 
apply to the latter.)

PointedEars
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Thread

defining functions Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-05 03:09 +0000
  Re: defining functions "Richard Cornford" <Richard@litotes.demon.co.uk> - 2011-11-05 04:35 +0000
    Re: defining functions Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-05 14:46 +0100
  Re: defining functions "J.R." <groups_jr-1@yahoo.com.br> - 2011-11-05 19:19 -0200
    Re: defining functions Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-07 13:26 +0100
      Re: defining functions "J.R." <groups_jr-1@yahoo.com.br> - 2011-11-13 21:39 -0200
        Re: defining functions Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-14 19:49 +0100
          Re: defining functions "J.R." <groups_jr-1@yahoo.com.br> - 2011-11-14 17:00 -0200

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