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Count the number of occurrences of a character in a string in Javascript
...a regular expression literal if you know what you are searching for beforehand, if not you can use the RegExp constructor, and pass in the g flag as an argument.
match returns null with no results thus the || []
The original answer I made in 2009 is below. It creates an array unnecessarily, but us...
How to check a not-defined variable in JavaScript
...nly be done with try/catch, since typeof will treat an undeclared variable and a variable declared with the value of undefined as equivalent.
But, to check if a variable is declared and is not undefined:
if (yourvar !== undefined) // Any scope
Previously, it was necessary to use the typeof opera...
Do something if screen width is less than 960 px
...han 768. This works like a charm. Thanks
– Danny Englander
Mar 13 '13 at 19:35
1
It makes sense t...
How can I push to my fork from a clone of the original repo?
...our local master branch to your fork by running
git push myrepo master
And if you want to tell Git that git push should push to myrepo instead of origin from now on, you should run
git push -u myrepo master
instead.
...
BCL (Base Class Library) vs FCL (Framework Class Library)
...y that, the base. It contains basic, fundamental types like System.String and System.DateTime.
The Framework Class Library (FCL) is the wider library that contains the totality: ASP.NET, WinForms, the XML stack, ADO.NET and more. You could say that the FCL includes the BCL.
...
Execute raw SQL using Doctrine 2
...the answer makes a difference. I used: ...getConnection()->query($sql); and didn't have to run $stmt->execute();
– Brandon
Apr 4 '17 at 18:54
...
What's the difference between Spring Data's MongoTemplate and MongoRepository?
...write an application with which I can do complex queries using spring-data and mongodb. I have been starting by using the MongoRepository but struggled with complex queries to find examples or to actually understand the Syntax.
...
Allowed characters in Linux environment variable names
...llowed in Linux environment variable names? My cursory search of man pages and the web did only produce information about how to work with variables, but not which names are allowed.
...
Are Mutexes needed in javascript?
...en this link: Implementing Mutual Exclusion in JavaScript .
On the other hand, I have read that there are no threads in javascript, but what exactly does that mean?
...
Calling a static method on a generic type parameter
...should just call the static method on the constrainted type directly. C# (and the CLR) do not support virtual static methods. So:
T.StaticMethodOnSomeBaseClassThatReturnsCollection
...can be no different than:
SomeBaseClass.StaticMethodOnSomeBaseClassThatReturnsCollection
Going through the ge...