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When to use symbols instead of strings in Ruby?
...fiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks.
Full answer
The only reason not to use them for identifiers that are generated dynamically is because of memory concerns.
This question is very common because many programming languages don't ...
What are the differences between 'call-template' and 'apply-templates' in XSL?
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<xsl:call-template> is a close equivalent to calling a function in a traditional programming language.
You can define functions in XSLT, like this simple one that outputs a string.
<xsl:template name="dosomething">
&...
Advantage of creating a generic repository vs. specific repository for each object?
We are developing an ASP.NET MVC application, and are now building the repository/service classes. I'm wondering if there are any major advantages to creating a generic IRepository interface that all repositories implement, vs. each Repository having its own unique interface and set of methods.
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How do I include inline JavaScript in Haml?
How can I write something like this to include in a template, but in Haml?
4 Answers
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What's the difference between window.location= and window.location.replace()?
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window.location adds an item to your history in that you can (or should be able to) click "Back" and go back to the current page.
window.location.replace replaces the current history item so you can't go back to it.
See window.locat...
Tools for analyzing performance of a Haskell program
... Euler Problems to learn Haskell (so currently I'm a completly beginner) I came over Problem 12 . I wrote this (naive) solution:
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How to wait for all goroutines to finish without using time.Sleep?
...ked executable and asynchronously applies processing to each result in the callback method (in the example below, just the name of the file is printed out).
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Android OpenGL ES and 2D
...les/demos.
Start, by setting up your app activity, and set up the basic canvas.
Take a loot at the replica island source code file: GameRenderer.java for how to setup your canvas with the proper GL flags for 2D (sprite) rendering.
You should really take a look at SpriteMethodTest by the same aut...
SQL Server CTE and recursion example
...ows employee info with the help of Sql server CTE and recursion. It is basically showing employees and their manager info. I am not able to understand how this query works. Here is the query:
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How to structure a express.js application?
...for breaking up and modularizing the app.js file in an Express.js application? Or is it common to keep everything in a single file?
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