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What does the construct x = x || y mean?
...hy; otherwise you'd get "Neither x nor y is truthy".
The actual question
Now, when you know how || operator works, you can probably make out by yourself what does x = x || y mean. If x is truthy, x is assigned to x, so actually nothing happens; otherwise y is assigned to x. It is commonly used to ...
How To Capture A Minidump: Let Me Count The Ways - C/C++ - 清泛网 - 专注C/C++及内核技术
...oday. Back in the old Windows days, when we had to program up hill in the snow both ways, there was only WinDBG. Now it seems like an application isn’t complete unless it produced a minidump. I thought I’d throw out all the ways I know off the top of my head. Of course, I’m sure th...
Generator Expressions vs. List Comprehension
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I know this is old, but I think it's worth noting that generators (and any iterable) can be added to lists with extend: a = [1, 2, 3] b = [4, 5, 6] a.extend(b) -- a will now be [1, 2, 3, 4, 5, 6]. (Can you add newlines in commen...
How does the extend() function work in jQuery?
...d to the first object / first parameter
Ex: $.extend(object1, object2);
Now object1 contains properties of object2
If we want to merge two objects, then we need to pass empty object in the first parameter
Ex: var newObject = $.extend({}, object1, object2);
Now newObject contains both properti...
Delete last commit in bitbucket
I made a mistake and I don't know how to delete my latest push in the repository. I pull the latest updates of the app but it has conflicts and I push it to repository.
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How to change the output color of echo in Linux
... Stack Overflow\n"
which prints love in red.
From @james-lim's comment, if you are using the echo command, be sure to use the -e flag to allow backslash escapes.
# Continued from above example
echo -e "I ${RED}love${NC} Stack Overflow"
(don't add "\n" when using echo unless you want to add add...
What is Inversion of Control?
...SpellChecker(); // dependency
TextEditor textEditor = new TextEditor(sc);
Now the client creating the TextEditor class has control over which SpellChecker implementation to use because we're injecting the dependency into the TextEditor signature.
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How do you run a command for each line of a file?
For example, right now I'm using the following to change a couple of files whose Unix paths I wrote to a file:
9 Answers
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Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
I would like to know when do we need to place a file under
5 Answers
5
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How to set the context path of a web application in Tomcat 7.0
I know that I can rename my webapp (or it's WAR file) to ROOT but this is a terrible way to do it, IMHO. Now I checked out the tomcat doc & it says
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