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How can I obtain the element-wise logical NOT of a pandas Series?
I have a pandas Series object containing boolean values. How can I get a series containing the logical NOT of each value?
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What makes Scala's operator overloading “good”, but C++'s “bad”?
Operator overloading in C++ is considered by many to be A Bad Thing(tm), and a mistake not to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
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.gitignore exclude folder but include specific subfolder
...ing /* is significant:
The pattern dir/ excludes a directory named dir and (implicitly) everything under it.
With dir/, Git will never look at anything under dir, and thus will never apply any of the “un-exclude” patterns to anything under dir.
The pattern dir/* says nothing about dir itself...
Case preserving substitute in Vim
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We do not deserve Tim Pope.
– Andrew Keeton
May 23 '19 at 19:47
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This plu...
Use HTML5 to resize an image before upload
I have found a few different posts and even questions on stackoverflow answering this question. I am basically implementing this same thing as this post .
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How does a debugger work?
...ary the one that can be 'attached' to already running executable. I understand that compiler translates code to machine language, but then how does debugger 'know' what it is being attached to?
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How should I call 3 functions in order to execute them one after the other?
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In Javascript, there are synchronous and asynchronous functions.
Synchronous Functions
Most functions in Javascript are synchronous. If you were to call several synchronous functions in a row
doSomething();
doSomethingElse();
doSomethingUsefulThisTime();
th...
Should private helper methods be static if they can be static
...s inside the class that do not require access to any of the class members, and operate solely on their arguments, returning a result.
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Differences between contentType and dataType in jQuery ajax function
I have the following Jquery callback function and I have a litle doubt about it (I don't know very well Jquery):
2 Answers
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Code coverage with Mocha
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You need an additional library for code coverage, and you are going to be blown away by how powerful and easy istanbul is. Try the following, after you get your mocha tests to pass:
npm install nyc
Now, simply place the command nyc in front of your existing test command, ...