Comments for Geekality

Comment on Project Euler: Problem 25 by Working with large numbers in C#: IntX « Eventually Beta

Working with large numbers in C#: IntX « Eventually Beta — Fri, 09 Jul 2010 20:04:05 +0000

[...] an example of how you can impliment IntX, again check out the homepage, or take a look at this blog which walks through one of the Project Euler problems using the IntX [...]

Comment on PHP: How to easily provide JSON and JSONP by Benjamin

Benjamin — Wed, 07 Jul 2010 10:52:39 +0000

Hi Torleif,

I have followed your instruction on jsonp. May firebug console still show the ajax request. May I know is there any more step which I have missed? I call url is as below:

http://test.com/gt_index.php?callback=jsonp1278499812769&_=1278499813551

Thank you
Benjamin.

Comment on PHP: How to easily provide JSON and JSONP by Torleif

Mon, 28 Jun 2010 08:37:34 +0000

Added charset to the content-type header, according to an answer to a question I posted about this on StackOverflow. PHP: Is this safe for providing JSONP?

Comment on Disappearing color labels in Mac OS X by Richard

Richard — Mon, 31 May 2010 23:50:10 +0000

Your solution worked for me. Thanks!

Comment on The Sieve of Atkin in C# by Mark Lawrence

Mark Lawrence — Sat, 22 May 2010 23:26:59 +0000

Ok I don’t know c# that well, but in your nested x/y for loops you compute both x * x and y * y three times, and 3 * x * x twice, could you compute these once only by using temporary variables? The third computation of n is done, then you check that x > y, why not perform this check first, then do the computation?

Comment on When to check for null by Torleif

Sat, 15 May 2010 11:14:37 +0000

Seen it and tried to use it a bit. For example when I make things that returns iterators or arrays I try to always return empty ones instead of null.

The colon-operator in Delphi Prism looks quite nice! In C# you have the ??-operator which is not as smooth, but still helps a bit with null checks.

Instead of doing:

var something = possibly_null != null ? possibly_null : alternative_if_null;

You can shorten it to:

var something = possibly_null ?? alternative_if_null;

So if you had an object to represent a null or empty object you could do like this:

var something = (some_container ?? Container.Empty).SomeProperty;

Comment on Project Euler: Problem 1 by kjmRacing

kjmRacing — Fri, 07 May 2010 05:33:14 +0000

the only proble is there should not be a semi colon in the Where

var multiples = new long[] {3, 5};
var answer = Enumerable
.Range(0, 1000)
.Where(x => multiples.Any(y =>; x%y == 0))
.Sum();