大约有 47,000 项符合查询结果（耗时：0.0563秒） [XML]
When to wrap quotes around a shell variable?
...o let a variable expand) or need to use no quotes (e.g. to do globbing and file name expansion).
– Ed Morton
Apr 19 '19 at 0:06
...
How to organize large R programs?
...ay to organize your code by topic
strongly encourages you to write a help file, making you think about the interface
a lot of sanity checks via R CMD check
a chance to add regression tests
as well as a means for namespaces.
Just running source() over code works for really short snippets. Everythi...
Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
...
You can change name of a class in File Inspector at the right side of Xcode6.
open your class
go to File Inspector > Identify and type section
rename existing class in "name" field.
That's all! Previously I manually rename the class name in the class f...
Regex (grep) for multi-line search needed [duplicate]
I'm running a grep to find any *.sql file that has the word select followed by the word customerName followed by the word from . This select statement can span many lines and can contain tabs and newlines.
...
How do I ignore files in Subversion?
How do I ignore files in Subversion?
18 Answers
18
...
PHP: exceptions vs errors?
...all kinds of things trigger errors unnecessarily (the vast majority of the file system functions, for example). In general exceptions are "the OOP way", but unfortunately some of PHP's native OOP APIs use errors instead of exceptions :-(
– DaveRandom
Sep 19 '13...
Disable ONLY_FULL_GROUP_BY
...ent solution): you have to put the description of sql_mode inside a my.cnf file (/etc/my.cnf for instance) and restart the server. For instance, insert (below the [mysqld] section) sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_S...
JSLint: was used before it was defined
Hi I have the 3 javascript files.
2 Answers
2
...
Should I add the Visual Studio .suo and .user files to source control?
Visual Studio solutions contain two types of hidden user files. One is the solution .suo file which is a binary file. The other is the project .user file which is a text file. Exactly what data do these files contain?
...
Bash command to sum a column of numbers [duplicate]
...
Using existing file:
paste -sd+ infile | bc
Using stdin:
<cmd> | paste -sd+ | bc
Edit:
With some paste implementations you need to be more explicit when reading from stdin:
<cmd> | paste -sd+ - | bc
...