大约有 48,000 项符合查询结果（耗时：0.0501秒） [XML]
How to execute a Ruby script in Terminal?
... (Ruby, Rails, Homebrew, Git, etc), and I've even written a small program. Now, how do I execute it in Terminal? I wrote the program in Redcar and saved it as a .rb, but I don't know how to execute it through Terminal. I want to run the program and see if it actually works. How do I do this?
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How to rollback a specific migration?
...back everything. Not nice! This was Rails 4.2 - I guess it may be fixed by now.
– Dave Hartnoll
Mar 13 '18 at 16:37
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How do I send a file as an email attachment using Linux command line?
...he used the mutt command, not mail. Also as others have pointed out, mutt now seems to require a -- argument before the address. And I see that @exhuma and I actually agree on what the -a option in mail does - I got confused there for a minute ;)
– nealmcb
Ja...
Ruby - test for array
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I downvoted this now since I don't think this is a good practice in a language like Ruby. The answer by @zgchurch is clearly a much more idiomatic approach to the question. In cases like this, I think it makes much more sense to try and figur...
Calling a JavaScript function named in a variable [duplicate]
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I'd avoid eval.
To solve this problem, you should know these things about JavaScript.
Functions are first-class objects, so they can be properties of an object (in which case they are called methods) or even elements of arrays.
If you aren't choosing the object a function b...
How to format a string as a telephone number in C#
...ming quote:
Some people, when confronted with a
problem, think “I know, I’ll use
regular expressions.” Now they have
two problems.
--Jamie Zawinski, in comp.lang.emacs
share
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What is the LD_PRELOAD trick?
I came across a reference to it recently on proggit and (as of now) it is not explained.
9 Answers
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Remove multiple whitespaces
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He also wants \n and \t to be replaced with space. Now his pattern does not match these, say for $x = "does\nthis\twork"; The OP wants all whitespace to be replaced with a single space.
– codaddict
Feb 24 '10 at 13:17
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Bad class file magic or version
I already know that question has been already asked very often and answers, but no one of the answers i found fixed my problem.
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Weird PHP error: 'Can't use function return value in write context'
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Phew, thx man! Now, if the parser would say "I expected square brackets after an array variable's name, duh!", it would sound much cooler than "Can't use function return value in write context." I might submit that to the PHP guys as a sugg...