大约有 32,000 项符合查询结果(耗时:0.0564秒) [XML]

https://stackoverflow.com/ques... 

Why is there no xrange function in Python3?

...x as slow? Well, if I repeat the same tests with 32-bit Python, I get 1.58 vs. 3.12. So my guess is that this is yet another of those cases where 3.x has been optimized for 64-bit performance in ways that hurt 32-bit. But does it really matter? Check this out, with 3.3.0 64-bit again: In [86]: %ti...
https://stackoverflow.com/ques... 

How do you set, clear, and toggle a single bit?

... community wiki 4 revs, 3 users 77%Steve Karg 18 ...
https://stackoverflow.com/ques... 

vbscript output to console

... Also found an explanation about GetStandardStream() vs WScript.StdIn/.StdOut/.StdErr : "VBScript in a Nutshell: A Desktop Quick Reference (2nd Edition)" books.google.fr/books?id=NLpuZSatG3QC page 298 says it's "functionnaly equivalent". – maxxyme ...
https://stackoverflow.com/ques... 

Why is enum class preferred over plain enum?

...: enum class Color1 { RED, GREEN, BLUE }. Accessing is similar: COLOR1_RED vs Color1::RED, but the Enum version requires you type "COLOR1" in each value, which gives more room for typos, which the namespace behaviour of an enum class avoids. – cdgraham Mar 5 '1...
https://stackoverflow.com/ques... 

Static variables in JavaScript

...ry faster than in the class in Firefox. jsperf.com/static-counter-in-class-vs-in-closure – Sony Santos Dec 9 '14 at 11:19 ...
https://stackoverflow.com/ques... 

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). ()=&gt...
https://stackoverflow.com/ques... 

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...
https://stackoverflow.com/ques... 

How to implement an STL-style iterator and avoid common pitfalls?

... 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...
https://stackoverflow.com/ques... 

Is non-blocking I/O really faster than multi-threaded blocking I/O? How?

... answered Feb 20 '15 at 20:27
https://stackoverflow.com/ques... 

What is the most efficient Java Collections library? [closed]

... Actually, I think your answer is misleading. Storing ints vs Integers is very different, and most likely the main reason for the increased memory usage. I agree a raw type collection framework could be useful, but it doesn't make trove or pcj "better" than java.util. ...