大约有 6,000 项符合查询结果(耗时:0.0250秒) [XML]

https://stackoverflow.com/ques... 

MySQL ON vs USING?

In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
https://stackoverflow.com/ques... 

PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?

...le and it didn't really seem to answer my question. Which one do the pro devs use? If either. – Jeff Sep 22 '09 at 12:27 2 ...
https://stackoverflow.com/ques... 

'any' vs 'Object'

I am looking at TypeScript code and noticed that they use: 6 Answers 6 ...
https://stackoverflow.com/ques... 

SSL Connection / Connection Reset with IISExpress

...SExpress for the first time (previously used ASP.net Development server on VS2010). I'm running into issues trying to debug my project. ...
https://stackoverflow.com/ques... 

Visual Studio 2010 IntelliSense doesn't select a default value - it just marks it

... vs2017, still works. And it still turns itself off randomly... this bug has been here a long damn time. – Douglas Gaskell Feb 20 '18 at 1:41 ...
https://stackoverflow.com/ques... 

Are list-comprehensions and functional functions faster than “for loops”?

...e you hit that ceiling, it becomes simply more cost efficient (15% speedup vs. 300% speed up with the same effort) to bite the bullet and write some C. share | improve this answer | ...
https://stackoverflow.com/ques... 

When to use setAttribute vs .attribute= in JavaScript?

Has a best-practice around using setAttribute instead of the dot ( . ) attribute notation been developed? 9 Answers ...
https://stackoverflow.com/ques... 

Mail multipart/alternative vs multipart/mixed

...l * http://stackoverflow.com/questions/3902455/smtp-multipart-alternative-vs-multipart-mixed * * * * @author doraemon */ public class GoogleMail { private GoogleMail() { } /** * Send email using GMail SMTP server. * * @param username GMail username * @param p...
https://stackoverflow.com/ques... 

What exactly does the “u” do? “git push -u origin master” vs “git push origin master”

I'm apparently terrible at using git, despite my best attempts to understand it. 4 Answers ...
https://stackoverflow.com/ques... 

switch() statement usage

...s in favor of switch: # Simplified to only measure the overhead of switch vs if test1 <- function(type) { switch(type, mean = 1, median = 2, trimmed = 3) } test2 <- function(type) { if (type == "mean") 1 else if (type == "median") 2 else if (type == "trimmed") 3 ...