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What is a regular expression which will match a valid domain name without a subdomain?
...ote, to use this regex, you will need to convert the domain to lower case, and also use an IDN library to ensure you encode domain names to ACE (also known as "ASCII Compatible Encoding"). One good library is GNU-Libidn.
idn(1) is the command line interface to the internationalized domain name libr...
CSS :after not adding content to certain elements
I'm having trouble understanding the behavior of the CSS :after property. According to the spec ( here and here ):
3 An...
How to solve java.lang.NoClassDefFoundError?
...issing a transitive dependency of a .jar file that you've compiled against and you're trying to use.
For example, if you had a class com.example.Foo, after compiling you would have a class file Foo.class. Say for example your working directory is .../project/. That class file must be placed in .../...
Pick a random element from an array
Suppose I have an array and I want to pick one element at random.
16 Answers
16
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Git workflow and rebase vs merge questions
... that:
you rewrite your local commit history with the one of the master (and then reapply your work, resolving any conflict then)
the final merge will certainly be a "fast forward" one, because it will have all the commit history of the master, plus only your changes to reapply.
I confirm that t...
OnChange event handler for radio button (INPUT type=“radio”) doesn't work as one value
... Just a note on why I chose this as the correct answer: Click event handlers are set up on each of the radio buttons with the name attribute myRadios to read the variable prev which holds the currently selected radio. A comparison is done within each click handler to decide if the clicked radi...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
Let's say for example in a brand new ASP.NET MVC 5 application made from the MVC with Individual Accounts template, if I delete the Global.asax.cs class and move it's configuration code to Startup.cs Configuration() method as follow, what are the downsides?
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Ruby, remove last N characters from a string?
... 2.5 you can use delete_suffix or delete_suffix! to achieve this in a fast and readable manner.
The docs on the methods are here.
If you know what the suffix is, this is idiomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'...
Django - what is the difference between render(), render_to_response() and direct_to_template()?
Whats the difference (in language a python/django noob can understand) in a view between render() , render_to_response() and direct_to_template() ?
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Where can I learn jQuery? Is it worth it?
... web development on w3schools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference.
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