Comments on: foreach syntax http://www.databasesandlife.com/foreach-syntax/ Adrian Smith's blog Fri, 03 Feb 2012 15:43:22 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Flo Ledermann http://www.databasesandlife.com/foreach-syntax/comment-page-1/#comment-11059 Flo Ledermann Fri, 26 Mar 2010 17:25:52 +0000 http://www.databasesandlife.com/?p=442#comment-11059 You can add Python (where I am doing most of my work nowadays) with yet another slightly different syntax: <code> for <em>element</em> in <em>list</em>: </code> Btw: Python does not even know a C-style for loop, you can only iterate over lists there. An C-style for loop would be <code> for <em>i</em> in range(<em>n</em>): </code> Concerning the semantics of <em>for</em> vs. <em>foreach</em>: I believe in mathematics, when talking about sets you say "for all x in Y", this even has a distinct sign (∀) - so "for" really is short for "for all", not "for each" for people who have a math background. You can add Python (where I am doing most of my work nowadays) with yet another slightly different syntax:


for element in list:

Btw: Python does not even know a C-style for loop, you can only iterate over lists there. An C-style for loop would be


for i in range(n):

Concerning the semantics of for vs. foreach: I believe in mathematics, when talking about sets you say “for all x in Y”, this even has a distinct sign (∀) – so “for” really is short for “for all”, not “for each” for people who have a math background.

]]> By: Robert http://www.databasesandlife.com/foreach-syntax/comment-page-1/#comment-11029 Robert Wed, 24 Mar 2010 14:35:47 +0000 http://www.databasesandlife.com/?p=442#comment-11029 BTW, there's `for each ... in` since JS 1.6, see: https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Statements/for_each...in :) BTW, there’s `for each … in` since JS 1.6, see:
https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Statements/for_each…in :)

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