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Why is arr = [] faster than arr = new Array?
...ntext which may contain the "arguments" object, locally defined variables, etc. If we cannot find it in the Activation object, we begin looking up the scope chain until we reach the global scope. If nothing is found, we throw a ReferenceError.
Once we've located the variable declaration, we invoke...
How to use a class from one C# project with another C# project
...such as filetype.py, filetype.java, filetype.c, filetype.cpp, filetype.C#, etc. or a library class file type (something other than startup file options you see when you create a new application project or create a new library project).
A new file name with default name is created in your project.
Ch...
Are multiple `.gitignore`s frowned on?
...single asterisk) in that directory and it will never show up in git status etc.
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Difference between class and type
...lass type covers our enums , our regular (non generic) classes like String etc and our generic classes too.
Similarly , I hope interface and array types is also clear. By array Type we mean like int[], String[] etc.
Let us come to the last part - Type variables. What are they ?
A type variabl...
What are Makefile.am and Makefile.in?
...out make and Makefile first, then learn about automake, autoconf, libtool, etc.
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What is the best way to do a substring in a batch file?
...s is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argument variables such as %0, %1, etc. you have to assign them to a normal environment variable using set first:
:: Does not work:
@echo %1:~10,5
:: Assign argument to local variable first:
set v...
Are arrays passed by value or passed by reference in Java? [duplicate]
...ce. What you cannot change is the variable from whence the reference was fetched in the calling context. This is only confusing if people conflate the reference and the variable that holds the reference.
– Stephen C
Oct 29 '16 at 4:25
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...ion file.
Create a text file ~/Library/Application Support/VisualVM/1.3.6/etc/visualvm.conf (replace 1.3.6 with whatever version of VisualVM you're using) containing the line
visualvm_jdkhome="`/usr/libexec/java_home -v '1.7*'`"
and this will force it to choose Java 7 instead of 8.
...
UDP vs TCP, how much faster is it? [closed]
...lement, which is a huge plus on embedded systems (microcontrollers, FPGAs, etc., in particular a TCP implementation for an FPGA is generally something you just want to purchase from somebody else and not think about).
– Jason C
Mar 5 '17 at 6:19
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A CORS POST request works from plain JavaScript, but why not with jQuery?
...m headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Control-Allow-Headers: *
You need to manually specify all the headers you will accept (at least that was the ...