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What's a good way to extend Error in JavaScript?
...t.
Test cases I used can be found here: JavaScript self-made Error object comparison.
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Const in JavaScript: when to use it and is it necessary?
I've recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables , and I've tested to ensure that it cannot be redefined (in Node.js):
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Custom Cell Row Height setting in storyboard is not responding
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Swift native base class or NSObject
... Objective-C classes, but implement only a handful of methods for NSObject compatibility
do not use objc_msgSend() for calls to their methods (by default)
do not provide Objective-C runtime metadata for their method implementations (by default)
Subclassing NSObject in Swift gets you Objective-C ru...
Rename master branch for both local and remote Git repositories
...you're not able to change the remote's configuration, you won't be able to completely delete the master branch!
This caveat only applies to the current branch (usually the master branch); any other branch can be deleted and recreated as above.
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How can I count text lines inside an DOM element? Can I?
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var element = document.getElementById('content');
document.defaultView.getComputedStyle(element, null).getPropertyValue("lineHeight");
You will also need to take padding and inter-line spacing into account.
EDIT
Fully self-contained test, explicitly setting line-height:
function countLines...
How to calculate the CPU usage of a process by PID in Linux from C?
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Field Content
pid process id
tcomm filename of the executable
state state (R is running, S is sleeping, D is sleeping in an
uninterruptible wait, Z is zombie, T is traced or stopped)
ppid process id of the pare...
What is the runtime performance cost of a Docker container?
I'd like to comprehensively understand the run-time performance cost of a Docker container. I've found references to networking anecdotally being ~100µs slower .
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Want to find records with no associated records in Rails
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Calling C/C++ from Python?
...jects to Python, and vice-versa, using no special
tools -- just your C++ compiler. It is designed to wrap C++ interfaces
non-intrusively, so that you should not have to change the C++ code at
all in order to wrap it, making Boost.Python ideal for exposing
3rd-party libraries to Python. The l...