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How to test if a string is basically an integer in quotes using Ruby
...!!(str =~ /^[-+]?[0-9]+$/) would do that. Then you could add it to String and leave out the argument, using "self" instead of "str", and then you could change the name to "is_i?" ...
– janm
Aug 5 '09 at 22:16
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AngularJS : When to use service instead of factory
...ng objects into AngularJS dependency injection system. It is very flexible and can contain sophisticated creation logic. Since factories are regular functions, we can also take advantage of a new lexical scope to simulate "private" variables. This is very useful as we can hide implementation details...
How do I capture SIGINT in Python?
I'm working on a python script that starts several processes and database connections. Every now and then I want to kill the script with a Ctrl + C signal, and I'd like to do some cleanup.
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Is there a way to escape a CDATA end token in xml?
...only the CDEnd string is recognized as markup, so that left angle brackets and ampersands may occur in their literal form; they need not (and cannot) be escaped using "<" and "&". CDATA sections cannot nest.
In other words, it's not possible to use entity reference, markup or any oth...
Operator overloading in Java
... aspect of Java which comes close to "custom" operator overloading is the handling of + for strings, which either results in compile-time concatenation of constants or execution-time concatenation using StringBuilder/StringBuffer. You can't define your own operators which act in the same way though....
Why are interface variables static and final by default?
Why are interface variables static and final by default in Java?
15 Answers
15
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Git add and commit in one command
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git config --global alias.add-commit '!git add -A && git commit'
and use it with
git add-commit -m 'My commit message'
EDIT: Reverted back to ticks ('), as otherwise it will fail for shell expansion on Linux. On Windows, one should use double-quotes (") instead (pointed out in the commen...
C#: why sign an assembly?
...mblies to be signed with the same key.
Is signing assemblies necessary and what would be wrong with not signing it?
No, it is not necessary but it is a mechanism allowing you to ensure the authenticity of an assembly. It allows you to ensure that an assembly hasn't been tampered with and indee...
What is the difference between -viewWillAppear: and -viewDidAppear:?
What is the difference between -[UIViewController viewWillAppear:] and -[UIViewController viewDidAppear:] ?
12 Answers
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Why would one declare a Java interface method as abstract?
...va Language Specification, the abstract keyword for interfaces is obsolete and should no longer be used. (Section 9.1.1.1)
That said, with Java's propensity for backwards compatibility, I really doubt it will ever make a difference whether the abstract keyword is present.
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