大约有 19,606 项符合查询结果（耗时：0.0294秒） [XML]
Linux command (like cat) to read a specified quantity of characters
...important to point out a simple variable-byte character-friendly (not byte-based) technique, using cut -c and tr/sed with character-classes.
Compare the following which doubly fails due to two common Latin-centric mistakes/presumptions regarding the bytes vs. characters issue (one is head vs. cut, ...
Purpose of “consider_all_requests_local” in config/environments/development.rb?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
What is the meaning of the term “free function” in C++?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Facebook access token server-side validation for iPhone app
I'm developing iPhone application, that is based on communication with server, and I want to use Facebook authentication mechanisms.
...
Find out whether Chrome console is open
...
Based on this discovery I was able to find less-intrusive method. DevTools calls toString() on functions when printing them to console. So one can print a custom function object with toString() method override returning empty...
regex for matching something if it is not preceded by something else
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Difference between static class and singleton pattern?
...methods is that singletons can implement interfaces (or derive from useful base classes, although that's less common, in my experience), so you can pass around the singleton as if it were "just another" implementation.
share...
Unique constraint that allows empty values in MySQL
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...alent to autodetection of the character set.
Adjust your columns and database as well:
var1 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL
Again, your MySQL version needs to be relatively up-to-date for utf8mb4 support.
...
Making Python loggers output all messages to stdout in addition to log file
...
Here is a solution based on the powerful but poorly documented logging.config.dictConfig method.
Instead of sending every log message to stdout, it sends messages with log level ERROR and higher to stderr and everything else to stdout.
This can...