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Difference between “or” and || in Ruby? [duplicate]
... Jan 30 '19 at 0:48
Andrew Marshall
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answered Jan 17 '10 at 23:38
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When to use an assertion and when to use an exception
...andled during development, but not in production (when assertions are typically disabled)?
– herman
Sep 14 '13 at 14:09
72
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Find the extension of a filename in Ruby
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That's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? ...
Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
...ethod docs causing headers to be dirty and triggering rebuilds. I have actually known people use that as an excuse for writing documentation later!
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Cause CMAKE to generate an error
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The message() method has an optional argument for the mode, allowing STATUS, WARNING, AUTHOR_WARNING, SEND_ERROR, and FATAL_ERROR. STATUS messages go to stdout. Every other mode of message, including none, goes to stderr.
You want SEND_ERROR if you want to output an error, but contin...
How do I alias commands in git?
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Basically you just need to add lines to ~/.gitconfig
[alias]
st = status
ci = commit -v
Or you can use the git config alias command:
$ git config --global alias.st status
On unix, use single quotes if the alias has ...
What is the Ruby (spaceship) operator?
...irst language to use it. Groovy is another language that supports it. Basically instead of returning 1 (true) or 0 (false) depending on whether the arguments are equal or unequal, the spaceship operator will return 1, 0, or −1 depending on the value of the left argument relative to the right argum...
Correct way to find max in an Array in Swift
I've so far got a simple (but potentially expensive) way:
12 Answers
12
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Change an HTML5 input's placeholder color with CSS
...nternet Explorer 9 and lower does not support the placeholder attribute at all, while Opera 12 and lower do not support any CSS selector for placeholders.
The discussion about the best implementation is still going on. Note the pseudo-elements act like real elements in the Shadow DOM. A padding on ...
How to delete last character from a string using jQuery?
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@skajfes and @GolezTrol provided the best methods to use. Personally, I prefer using "slice()". It's less code, and you don't have to know how long a string is. Just use:
//-----------------------------------------
// @param begin Required. The index where
// to begin th...