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Removing list of vms in vagrant cache
... an accepted and upvoted answer, but this "prunes" the global-status list. Meaning that the VM no longer shows up in the list. The VM itself remains untouched, though. Meaning one still has to unregister and delete it manually. The very simple thing should be that vagrant does its job properly when ...
Bulk package updates using Conda
... that the latter will not update you from Python 2 to Python 3, but the former will show Python as being outdated if you do use Python 2).
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Do you use NULL or 0 (zero) for pointers in C++?
...er to avoid macros, so I use 0. Another problem with NULL is that people sometimes mistakenly believe that it is different from 0 and/or not an integer. In pre-standard code, NULL was/is sometimes defined to something unsuitable and therefore had/has to be avoided. That's less common these days.
If ...
form_for but to post to a different action
... I dont think url_for is necessary. Also since controller is the same, you could use form_for @user, :url => :action => 'myaction'
– rubyprince
Mar 16 '11 at 3:32
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What is string_view?
string_view was a proposed feature within the C++ Library Fundamentals TS( N3921 ) added to C++17
1 Answer
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How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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UILabel - Wordwrap text
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For anyone who this wasn't obvious to (like me): The UILabel must have some sort of limit on its width (either from an actual width constraint or margin constraints); otherwise it won't wrap.
– jcady
Jun 24 '16 at 1:18
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How to check if object (variable) is defined in R?
I'd like to check if some variable is defined in R - without getting an error. How can I do this?
6 Answers
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Best way to work with transactions in MS SQL Server Management Studio
Let's say I have an SQL statement that's syntactically and semantically correct so it executes.
2 Answers
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How to affect other elements when one element is hovered
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#container:hover + #cube { background-color: yellow; }
If the cube is somewhere inside the container:
#container:hover #cube { background-color: yellow; }
If the cube is a sibling of the container:
#container:hover ~ #cube { background-color: yellow; }
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