大约有 48,000 项符合查询结果(耗时:0.0632秒) [XML]

https://stackoverflow.com/ques... 

What is the difference between inversedBy and mappedBy?

...e engine can use the reference above it which says its mappedBy Category. Now... don't be confused here like I was... Category is NOT referring TO THE CLASS NAME, its referring to the property on the Task class called 'protected $category'. Like wise, on the Tasks class the property $category ment...
https://stackoverflow.com/ques... 

Why is nginx responding to any domain name?

...nginx up and running with a Ruby/Sinatra app and all is well. However, I'm now trying to have a second application running from the same server and I noticed something weird. First, here's my nginx.conf: ...
https://stackoverflow.com/ques... 

Double vs single quotes

...the user Interpolating with single quotes does not work at all: '#{Time.now}' => "\#{Time.now}" # which is not what you want.. Best practice As most of the Ruby Linters suggest use single quote literals for your strings and go for the double ones in the case of interpolation/escaping sequen...
https://stackoverflow.com/ques... 

Enum String Name from Value

... @AZChad it is a great thing to know, sure; but it doesn't really apply in the OP's scenario, since the values are coming from a database (so: runtime, not compile-time, values) – Marc Gravell♦ Nov 29 '18 at 12:52 ...
https://stackoverflow.com/ques... 

What is pseudopolynomial time? How does it differ from polynomial time?

...then it will take some worst-case amount of time, say T, to complete. If I now add a single bit to the end of the number, like this: 100010101010111 The runtime will now (in the worst case) be 2T. I can double the amount of work the algorithm does just by adding one more bit! An algorithm run...
https://stackoverflow.com/ques... 

Is cout synchronized/thread-safe?

... Technically true for C++98/C++03, but I think everybody knows that. But this does not answer the two interesting questions: What about C++0x? What do typical implementations actually do? – Nemo Jun 16 '11 at 15:46 ...
https://stackoverflow.com/ques... 

Converting an integer to a string in PHP

... @SimonForsberg I tested this with php 7.4.8 and it converts 0 to "0" now – MADforFUNandHappy Jul 15 at 15:31 @MA...
https://stackoverflow.com/ques... 

string.charAt(x) or string[x]?

... Bracket notation now works on all major browsers, except for IE7 and below. // Bracket Notation "Test String1"[6] // charAt Implementation "Test String1".charAt(6) It used to be a bad idea to use brackets, for these reasons (Source): ...
https://stackoverflow.com/ques... 

How to handle multiple cookies with the same name?

...: this information from 2010 appears to be outdated, it seems browsers can now send multiple cookies in return, see answer by @Nate below for details share | improve this answer | ...
https://stackoverflow.com/ques... 

Performance surprise with “as” and nullable types

...a few machine code instructions. The cast is also easy, the JIT compiler knows the location of the value bits in the object and uses them directly. No copying or conversion occurs, all machine code is inline and takes but about a dozen instructions. This needed to be really efficient back in .NET...