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Regex to match string containing two names in any order
...actorially. For 3 names there would be 6 "or"s, 4 names would be 24 "or"s, etc.
– WileCau
Oct 24 '18 at 0:46
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node.js remove file
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to check files can be deleted or not, Use fs.access instead
fs.access('/etc/passwd', fs.constants.R_OK | fs.constants.W_OK, (err) => {
console.log(err ? 'no access!' : 'can read/write');
});
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Does a javascript if statement with multiple conditions test all of them?
... won't throw a compile error if response.authResponse is null or undefined etc because the first condition failed.
Other languages had this problem in the early days and I think it's a standard approach in building compilers now.
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What is the 'override' keyword in C++ used for? [duplicate]
...s expecting a callback but it will never happen due to the library change, etc.
– Hei
Mar 11 '18 at 5:32
I don't think...
C# namespace alias - what's the point?
...inModel;
// contains common web functionality
using web = Company.Web;
// etc.
and
// User from the domain model
dom.User user = new dom.User();
// Data transfer object
dto.User user = new dto.User();
// a global helper class
utl.SomeHelper.StaticMethod();
// a hyperlink with custom function...
What does $$ mean in the shell?
...ning as root and I create /tmp/yourprogname13395 as a symlink pointing to /etc/passwd -- and you write into it.
This is a bad thing to be doing in a shell script. If you're going to use a temporary file for something, you ought to be using a better language which will at least let you add the "excl...
Replace whitespaces with tabs in linux
...an up the output of say, unzip -l , for further processing with grep, cut, etc.
e.g.,
unzip -l some-jars-and-textfiles.zip | tr [:blank:] \\t | cut -f 5 | grep jar
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Is there a way to instantiate a class by name in Java?
...lass.forName("com.foo.MyClass");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInstance("stringparam", 42);
Both methods are known as reflection. You will typically have to catch the various exceptions which can occur, includ...
CSS Background Opacity [duplicate]
...e directly. Editing your background image to be a semi-transparent png/gif/etc.. is even more correct. Opacity takes a bit more juice to render.
– Patrick Borkowicz
Dec 5 '14 at 19:11
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Express.js req.body undefined
...s before app.configure(). In my case this was in the form of app.get/post etc, and a require() including them.
– bendman
Feb 24 '13 at 21:18
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