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What's the difference between std::move and std::forward
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std::move takes an object and allows you to treat it as a temporary (an rvalue). Although it isn't a semantic requirement, typically a function accepting a reference to an rvalue will invalidate it. When you see std::move, it indicates that the value of the object should not...
Git command to show which specific files are ignored by .gitignore
I am getting my feet wet with Git and have the following issue:
9 Answers
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Any reason not to use '+' to concatenate two strings?
... because the Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the ...
Status bar won't disappear
...l the [self setNeedsStatusBarAppearanceUpdate]; after calling this method with something other than the default value (the default value is NO).
– manderson
Sep 12 '13 at 13:51
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Change Placeholder Text using jQuery
I am using a jQuery placeholder plugin(https://github.com/danielstocks/jQuery-Placeholder). I need to change the placeholder text with the change in dropdown menu. But it is not changing. Here is the code:
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Why do I need to explicitly push a new branch?
I am new in git and I am practicing. I created a local branch but I saw that when I did git push my branch was not uploaded to the repository. I had to actually do: git push -u origin --all .
Why is this? Isn't a branch a new change to be pushed by default? Why do I need to run the second com...
How to output git log with the first line only?
I am trying to customize the format for git log . I want all commits to be shown in one line. Each line should only show the first line of the commit message.
I found out that git log --pretty=short should do the trick but on my computer it shows the full log as git log does (besides the ti...
Java `final` method: what does it promise?
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As mentioned, final is used with a Java method to mark that the method can't be overridden (for object scope) or hidden (for static). This allows the original developer to create functionality that cannot be changed by subclasses, and that is all the gua...
Long-lasting FB access-token for server to pull FB page info
...y questions about Facebook access-tokens and the grief they cause, but despite much experimentation and reading many frustratingly vague blog articles (FB and otherwise), I'm still struggling to get a clear answer to my needs. Let me succinctly break down my process so far:
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Adding a UILabel to a UIToolbar
...el to my toolbar. Button works great, however when I add the label object, it crashes. Any ideas?
8 Answers
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