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Difference between \w and \b regular expression meta characters
Can anyone explain the difference between \b and \w regular expression metacharacters? It is my understanding that both these metacharacters are used for word boundaries. Apart from this, which meta character is efficient for multilingual content?
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New self vs. new static
...ay is the use of late static binding like return new static($options); , if I convert this to return new self($options) will I get the same results?
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npm not working after clearing cache
...uption issues and data extracted from the cache is guaranteed to be valid. If you want to make sure everything is consistent, use
npm cache verify
instead."
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Why is it wrong to use std::auto_ptr with standard containers?
..., std::shared_ptr or std::weak_ptr smart pointers or the boost equivalents if you don't have C++11. Here is the boost library documentation for these smart pointers.
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Is there any sed like utility for cmd.exe? [closed]
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In addition: if you want to call it from normal cmd, just @powershell -Command "get-content..." it. The only caveat is that you must escape quotations marks: ... -Command "get-content ... \"expression\",..."
– Tarc
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How to test valid UUID/GUID?
How to check if variable contains valid UUID/GUID identifier?
12 Answers
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How to retrieve a single file from a specific revision in Git?
...ash
Tip It's important to remember that when using "git show", always specify a path from the root of the repository, not your current directory position.
(Although Mike Morearty mentions that, at least with git 1.7.5.4, you can specify a relative path by putting "./" at the beginning of the path. ...
Resize fields in Django Admin
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Note that this will not work if filter_horizontal or filter_vertical is set for the corresponding fields in YourModelAdmin. I've spent some time to figure this out.
– Dennis Golomazov
Sep 9 '13 at 10:32
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Instantiating object of type parameter
...at is known about T is that it is some subclass of Object. You need to specify some factory to create instances of T.
One approach could use a Supplier<T>:
class MyClass<T> {
private final Supplier<? extends T> ctor;
private T field;
MyClass(Supplier<? extends T> c...
How do I know the script file name in a Bash script?
...unning bar.sh!? Must be a bug!" Besides, one of the purposes of having differently-named symlinks is to provide different functionality based on the name it's called as (think gzip and gunzip on some platforms).
1 That is, to resolve symlinks such that when the user executes foo.sh which is ac...