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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?

...swered Jun 17 '16 at 15:20 James_picJames_pic 2,9321414 silver badges2323 bronze badges ...
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Java: PrintStream to String?

...= new ByteArrayOutputStream(); final String utf8 = StandardCharsets.UTF_8.name(); try (PrintStream ps = new PrintStream(baos, true, utf8)) { yourFunction(object, ps); } String data = baos.toString(utf8); ...
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Callback functions in Java

... answered Nov 6 '14 at 10:02 Juh_Juh_ 10k44 gold badges3939 silver badges6666 bronze badges ...
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OS detecting makefile

...was adding OS/CPU auto-detection happened to be using. ifeq ($(OS),Windows_NT) CCFLAGS += -D WIN32 ifeq ($(PROCESSOR_ARCHITEW6432),AMD64) CCFLAGS += -D AMD64 else ifeq ($(PROCESSOR_ARCHITECTURE),AMD64) CCFLAGS += -D AMD64 endif ifeq ($(PROCESS...
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A Regex that will never be matched by anything

...e of $a. It's Perl equivalent $(?:a) is also very slow perl -Mre=debug -e'$_=a x 50; /$(?:a)/'. – Brad Gilbert Apr 6 '13 at 14:56 ...
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How to grey out a button?

I have a button defined as shown below. When I want to disable it I use my_btn.setEnabled(false) , but I would also like to grey it out. How can I do that? ...
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How to unzip a file using the command line? [closed]

...mmand "Expand-Archive '.\file.zip' '.\unziped\'" – AK_ Mar 17 '18 at 21:11 @AK_ what about Windows 8 or 8.1? ...
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PHP Function with Optional Parameters

...onal optional args. //My function with tons of optional params function my_func($req_a, $req_b, $opt_a = NULL, $opt_b = NULL, $opt_c = NULL) { //Do stuff } my_func('Hi', 'World', null, null, 'Red'); However, I usually find that when I start writing a function/method with that many arguments - m...
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Intro to GPU programming [closed]

...There are tons of cool materials to read. http://www.nvidia.com/object/cuda_home.html Hello world would be to do any kind of calculation using GPU. Hope that helps. share | improve this answer ...
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SQL Server database backup restore on lower version

.... Download the latest version from here. Prerequisites: sqlncli.msi/sqlncli_x64.msi/sqlncli_ia64.msi, SQLServer2005_XMO.msi/SQLServer2005_XMO_x64.msi/SQLServer2005_XMO_ia64.msi (download here). share | ...