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Learning Python from Ruby; Differences and Similarities
... @John. "x is None" is the absolutely idiomatic way to do it. python.net/~goodger/projects/pycon/2007/idiomatic/handout.html
– tokland
Jan 22 '11 at 18:43
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...y and paste the actual Unicode character into the HTML attribute. jsfiddle.net/mblase75/Lcsjkc5y
– Blazemonger
Jun 19 '15 at 19:06
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Boolean operators && and ||
...le on that page you can see that && is equivalent to AndAlso in VB.NET, which I assume you are referring to.
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Shortest distance between a point and a line segment
...st 2D distance between a point and a line segment in all cases in C, C# / .NET 2.0 or Java? I was asked to put a C# answer here when I find one: so here it is, modified from http://www.topcoder.com/tc?d1=tutorials&d2=geometry1&module=Static :
//Compute the dot product AB . BC
private double...
#pragma once vs include guards? [duplicate]
...hierarchy perspectives (current-working-directories), soft and hard links, network filesystems, and even name collision --try with a file named string.h or something like that--). Not taking into account speed, you could have a script that substituted any, say, %INCLUDE_GUARD% in a file for an autom...
Regular expression for floating point numbers
...e java.lang.Double.valueOf(String) method (start at http://hg.openjdk.java.net/jdk8/jdk8/jdk, click "browse", navigate down /src/share/classes/java/lang/ and find the Double class). The long regex that this class contains caters for various possibilities that the OP probably didn't have in mind, but...
Which characters make a URL invalid?
... "unwise" in the URI spec will throw a URISyntaxException in the Java java.net.URI constructor so a URL like http://api.google.com/q?exp=a|b is not allowed and must be encoded instead as http://api.google.com/q?exp=a%7Cb if using Java with a URI object instance.
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What is the most appropriate way to store user settings in Android application
...available in API level 8 (2.2) and later. You can use iharder.sourceforge.net/current/java/base64 or something else for earlier OSs.
– emmby
Jun 20 '11 at 22:19
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How do I create a WPF Rounded Corner container?
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VB.Net code based implementation of kobusb's Border control solution. I used it to populate a ListBox of Button controls. The Button controls are created from MEF extensions. Each extension uses MEF's ExportMetaData attribute fo...
Arrays, heap and stack and value types
...tanding about reference and value types. This is something probably every .NET and Java developer struggled with.
An array is just a list of values. If it's an array of a reference type (say a string[]) then the array is a list of references to various string objects on the heap, as a reference is...