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Is a url query parameter valid if it has no value?
.... If its a framework, you'll need to consult your documentation or simply test it to see how it is handled.
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iOS5 Storyboard error: Storyboards are unavailable on iOS 4.3 and prior
...ve built a small app using storyboards and it ran great. Just before final testing I decided to try it out to see if it runs on iOS 4.3. I clicked on the gray 5.0 in the project settings and selected 4.3.
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Root user/sudo equivalent in Cygwin?
...mmand on the Cygwin CLI, or add it to ~/.bashrc:
$ PATH=$HOME/bin:$PATH
Tested on 64-bit Windows 8.
You could also instead of above steps add an alias for this command to ~/.bashrc:
# alias to simulate sudo
alias sudo='cygstart --action=runas'
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Remove the last line from a file in Bash
...
This is by far the fastest and simplest solution, especially on big files:
head -n -1 foo.txt > temp.txt ; mv temp.txt foo.txt
if You want to delete the top line use this:
tail -n +2 foo.txt
which means output lines starting at line 2.
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ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat
...on't forget all the other -vXX folders as well, or it'll work fine in your test env, only to bite you once someone uses one of those versions.
– falstro
Jan 20 '14 at 11:27
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Why doesn't Python have multiline comments?
...enotes a ending comment block as literally / will be printed. Go ahead and test this in C++. In fact SO's syntax highlighter will show that is valid. This is not a complex subject, it has existed for years in other languages. I would ask that you update your post to include the use of escape charact...
When should I create a destructor?
...is very difficult.
When have you needed to create a destructor?
When testing the part of the compiler that handles destructors. I've never needed to do so in production code. I seldom write objects that manipulate unmanaged resources.
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C++ performance vs. Java/C#
...f C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it.
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How to define a reply-to address?
...do
config.action_mailer.default_options = {
reply_to: 'test@example.com'
}
end
The reference:
https://guides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration
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What is the preferred Bash shebang?
...ses some bash (2nd generation, "Bourne Again sh") specific features ([[ ]] tests, arrays, various sugary things, etc.), then you should be more specific and use the later. This way, on systems where bash is not installed, your script won't run. I understand there may be an exciting trilogy of films ...