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What is the JavaScript convention for no operation?
...browsers except IE (there is a babel transform if you must):
()=>{} vs. Function.Prototype
()=>{} is 87% faster than Function.prototype in Chrome 67.
()=>{} is 25% faster than Function.prototype in Firefox 60.
()=>{} is 85% faster than Function.prototype in Edge (6/15/2018).
()=>...
Why does Clojure have “keywords” in addition to “symbols”?
...eys in hashmaps etc as they don't change once evaluated: (eval (eval ':a)) vs (eval (eval ''a)). Are there other advantages? Performance wise, they are identical?
– kristianlm
Aug 3 '12 at 19:56
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What's the difference between libev and libevent?
...or libevent), allowing extra event types such as timers based on wallclock vs. monotonic time, inter-thread interruptions, prepare and check watchers to embed other event loops or to be embedded and so on.
The extra component problem is "solved" by not having them at all, so libev can be small and ...
Javascript reduce on array of objects
...etter Type Inference
--When using a tool like Typescript or an editor like VS Code, you get the benefit of telling the compiler the initial and it can catch errors if you're doing it wrong. If you don't set the initial value, in many situations it might not be able to guess and you could end up with...
What is the Invariant Culture?
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as for an example - https://msdn.microsoft.com/en-us/library/4c5zdc6a(v=vs.100).aspx. When you write out an app-specific file which the user shouldn't be messing around with, you should use InvariantCulture for all methods that take in a culture parameter.
Note that per the docs linked above:
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“Debug only” code that should run only when “turned on”
...g in a release build. As the variable exists solely to be toggled from the VS execution host, and in a release build its value doesn't matter, it's pretty harmless.
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Using an RDBMS as event sourcing storage
..., timestamps gave us insight into the order in which events were persisted vs raised. That gave us some assistance on a particularly heavily event driven system that raised vast quantities of events, giving us information about the performance of things like networks and the systems distribution acr...
How to sort a dataframe by multiple column(s)
...uartile, dot is the median)
Given these results and weighing simplicity vs. speed, I'd have to give the nod to arrange in the plyr package. It has a simple syntax and yet is almost as speedy as the base R commands with their convoluted machinations. Typically brilliant Hadley Wickham work. My ...
How to implement an STL-style iterator and avoid common pitfalls?
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I really don't get the cplusplus vs cppreference dispute, they are both good and missing many things. However, C++ is the only language where implementing standard library iterators is an hell XD. Most times is simpler writing a wrapper class over an stl con...
When to use reinterpret_cast?
I am little confused with the applicability of reinterpret_cast vs static_cast . From what I have read the general rules are to use static cast when the types can be interpreted at compile time hence the word static . This is the cast the C++ compiler uses internally for implicit casts also.
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