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What does “rc” mean in dot files
...he ‘rc’ suffix goes back to Unix's grandparent, CTSS. It had a command-script feature called "runcom". Early Unixes used ‘rc’ for the name of the operating system's boot script, as a tribute to CTSS runcom.
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Python non-greedy regexes
...havior isn’t desired; if the RE <.*> is matched against '<H1>title</H1>', it will match the entire string, and not just '<H1>'. Adding '?' after the qualifier makes it perform the match in non-greedy or minimal fashion; as few characters as possible will be matched. Using ....
How to style SVG with external CSS?
...is possible to style an SVG by dynamically creating a style element in JavaScript and appending it to the SVG element. Hacky, but it works.
<object id="dynamic-svg" type="image/svg+xml" data="your-svg.svg">
Your browser does not support SVG
</object>
<script>
var svgHolder...
Difference between application/x-javascript and text/javascript content types
...
text/javascript is obsolete, and application/x-javascript was experimental (hence the x- prefix) for a transitional period until application/javascript could be standardised.
You should use application/javascript. This is documented...
SVG gradient using CSS
... as you like in css. You can even change their values dynamically with javascript, like:
document.querySelector('#header-shape-gradient').style.setProperty('--color-stop', "#f5f7f9");
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impro...
In c++ what does a tilde “~” before a function name signify?
...r for class Stack.
But taking your question exactly as it appears in the title:
In c++ what does a tilde “~” before a function name signify?
there is another situation. In any context except immediately before the name of a class (which is the destructor context), ~ is the one's compleme...
Docker: adding a file from a parent directory
...d answer.
Directory structure :
setup/
|__docker/DockerFile
|__target/scripts/<myscripts.sh>
src/
|__<my source files>
Docker file entry:
RUN mkdir -p /home/vagrant/dockerws/chatServerInstaller/scripts/
RUN mkdir -p /home/vagrant/dockerws/chatServerInstaller/src/
WORKDIR /home/v...
How to handle Objective-C protocols that contain properties?
...
all you have to do really is to drop a
@synthesize title;
in your implementation and you should be all set. it works the same way as just putting the property in your class interface.
Edit:
You may want to do this more specifically:
@synthesize title = _title;
This wi...
`if __name__ == '__main__'` equivalent in Ruby
...anted, not a ton), this is not a standard Ruby design pattern. Modules and scripts are supposed to stay separate, so I wouldn't be surprised if there isn't really a good, clean way of doing this.
EDIT: Found it.
if __FILE__ == $0
foo()
bar()
end
But it's definitely not common.
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PowerShell: Setting an environment variable for a single command only
...
Generally, it would be better to pass info to the script via a parameter rather than a
global (environment) variable. But if that is what you need to do you can do it this way:
$env:FOO = 'BAR'; ./myscript
The environment variable $env:FOO can be deleted later like so:
...