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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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Move assignment operator and `if (this != &rhs)`
...s to either client.
The key to satisfying both clients is to build the fastest operations in at the lowest level, and then to add API on top of that for fuller features at more expense. I.e. you need the strong exception guarantee, fine, you pay for it. You don't need it? Here's a faster solutio...
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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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 ...