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How to check if a string is a valid hex color representation?
For example:
7 Answers
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What does numpy.random.seed(0) do?
What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this.
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Fastest way to convert string to integer in PHP
Using PHP, what's the fastest way to convert a string like this: "123" to an integer?
8 Answers
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Validate that a string is a positive integer
I would like the simplest fail-safe test to check that a string in JavaScript is a positive integer.
13 Answers
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Configure Flask dev server to be visible across the network
I'm not sure if this is Flask specific, but when I run an app in dev mode ( http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server c...
String concatenation in Ruby
I am looking for a more elegant way of concatenating strings in Ruby.
16 Answers
16
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Trees in Twitter Bootstrap [closed]
I have been trying to work on creating a tree (like a directory tree) that uses as much CSS and as little JS as possible (only for states, etc), and I want to know if there are some good existing tree plugins for bootstrap or jquery-ui bootstrap .
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How to use glOrtho() in OpenGL?
I can't understand the usage of glOrtho . Can someone explain what it is used for?
3 Answers
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Regular expression to match URLs in Java
I use RegexBuddy while working with regular expressions. From its library I copied the regular expression to match URLs. I tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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How do you know what to test when writing unit tests? [closed]
Using C#, I need a class called User that has a username, password, active flag, first name, last name, full name, etc.
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