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What is the _snowman param in Ruby on Rails 3 forms for?
In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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What are the special dollar sign shell variables?
...ash, there appear to be several variables which hold special, consistently-meaning values. For instance,
4 Answers
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How to check if a function exists on a SQL database
...abase, so that I can drop it and create it again. It should basically be something like the following code that I use for stored procedures:
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Having a private branch of a public repo on GitHub?
...ave a public PHP project in a GitHub repo, which contains just one branch (master).
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How assignment works with Python list slice?
...new" list is being returned I've the following questions related to "Assignment to slices"
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How to upgrade Eclipse for Java EE Developers?
...ences > Install/Update > Available Software Sites > Add...
Name: Oxygen
Location: http://download.eclipse.org/releases/oxygen/
Then tell Eclipse to look for updates: Help > Check for updates.
After the installation, Eclipse will restart and show the old splash screen. Next...
how to use “AND”, “OR” for RewriteCond on Apache?
...teresting question and since it isn't explained very explicitly in the documentation I'll answer this by going through the sourcecode of mod_rewrite; demonstrating a big benefit of open-source.
In the top section you'll quickly spot the defines used to name these flags:
#define CONDFLAG_NONE ...
How to bind multiple values to a single WPF TextBlock?
I'm currently using the TextBlock below to bind the value of a property named Name :
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Check if a string contains one of 10 characters
I'm using C# and I want to check if a string contains one of ten characters, *, &, # etc etc.
6 Answers
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git - merge conflict when local is deleted but file exists in remote
I am very new to git and wondered how I should go about a merge where in the local repo I have deleted several files on the master branch but these files exist within the remote master branch.
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