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Add subdomain to localhost URL
I am writing an web application that behaves differently depending on a url prefix. The format is something like:
5 Answers...
Formatting a float to 2 decimal places
I am currently building a sales module for a clients website. So far I have got the sale price to calculate perfectly but where I have come stuck is formatting the output to 2 decimal places.
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When should I use Struct vs. OpenStruct?
In general, what are the advantages and disadvantages of using an OpenStruct as compared to a Struct? What type of general use-cases would fit each of these?
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What is the best way to programmatically detect porn images? [closed]
Akismet does an amazing job at detecting spam comments. But comments are not the only form of spam these days. What if I wanted something like akismet to automatically detect porn images on a social networking site which allows users to upload their pics, avatars, etc?
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Getting the closest string match
I need a way to compare multiple strings to a test string and return the string that closely resembles it:
12 Answers
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How to add a ScrollBar to a Stackpanel
In my WPF application, I have a Stackpanel containing several controls inside them. How can I add a Scrollbar to this stackpanel.
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How do I execute a command and get the output of the command within C++ using POSIX?
I am looking for a way to get the output of a command when it is run from within a C++ program. I have looked at using the system() function, but that will just execute a command. Here's an example of what I'm looking for:
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How to format numbers? [duplicate]
I want to format numbers using JavaScript.
17 Answers
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
Using the HTML5 <canvas> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
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Return a value if no rows are found in Microsoft tSQL
Using a Microsoft version of SQL, here's my simple query. If I query a record that doesn't exist then I will get nothing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
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