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How to define hash tables in Bash?
...n/env bash or #!/bin/bash so you don't end up using sh. Make sure you're either executing your script directly, or execute script with bash script. (Not actually executing a Bash script with Bash does happen, and will be really confusing!)
You declare an associative array by doing:
declare -A ani...
How to test if a string is basically an integer in quotes using Ruby
...
You can use regular expressions. Here is the function with @janm's suggestions.
class String
def is_i?
!!(self =~ /\A[-+]?[0-9]+\z/)
end
end
An edited version according to comment from @wich:
class String
def is_i?
/\A[-+]?\d+\z/ === self
end
end...
How to perform runtime type checking in Dart?
...ss Foo { }
main() {
var foo = new Foo();
if (foo is Foo) {
print("it's a foo!");
}
}
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Operator Overloading with C# Extension Methods
...e feature is being discussed for some future release of C#. Mads talked a bit more about implementing it in this video from 2017.
On why it isn't currently implemented, Mads Torgersen, C# Language PM says:
...for the Orcas release we decided to
take the cautious approach and add
only regular extens...
How to split a dos path into its components in Python
...
I've been bitten loads of times by people writing their own path fiddling functions and getting it wrong. Spaces, slashes, backslashes, colons -- the possibilities for confusion are not endless, but mistakes are easily made anyway. So I...
How to trim whitespace from a Bash variable?
I have a shell script with this code:
42 Answers
42
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What is Dispatcher Servlet in Spring?
...ap buildHome() {
return somestuff;
}
The Dispatcher servlet is the bit that "knows" to call that method when a browser requests the page, and to combine its results with the matching JSP file to make an html document.
How it accomplishes this varies widely with configuration and Spring versi...
How to diff a commit with its parent?
Aside from writing an alias or script, is there a shorter command for getting the diff for a particular commit?
8 Answers
...
How can I override the OnBeforeUnload dialog and replace it with my own?
... the default dialogue for onbeforeunload, so your best bet may be to work with it.
window.onbeforeunload = function() {
return 'You have unsaved changes!';
}
Here's a reference to this from Microsoft:
When a string is assigned to the returnValue property of window.event, a dialog box appe...
How do I get an animated gif to work in WPF?
...(above by Dario) to work properly. The result was weird, choppy animation with weird artifacts.
Best solution I have found so far:
https://github.com/XamlAnimatedGif/WpfAnimatedGif
You can install it with NuGet
PM> Install-Package WpfAnimatedGif
and to use it, at a new namespace to the Window ...