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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
...egister it as an observer for the UIApplicationDidBecomeActiveNotification and specify which method that you want to call when that notification gets sent to your application.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(someMeth...
What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...
How to compare two files not in repo using git
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git's diff is more functional than the standard unix diff. I often want to do this and since this question ranks highly on google, I want this answer to show up.
This question: How to use git diff --color-words outside a Git repository?
Shows how to use git to di...
jQuery changing style of HTML element
...at once, that's when you would add the curly braces (for object notation), and it would look something like this (if you wanted to change, say, 'background-color' and 'position' in addition to 'display'):
$('#navigation ul li').css({'display': 'inline-block', 'background-color': '#fff', 'position':...
Disable all gcc warnings
...n a project that will read compiler error messages of a particular variety and do useful things with them. The sample codebase I'm testing this on (a random open-source application), and hence rebuilding frequently, contains a few bits that generate warnings, which are of no interest to me.
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Checking for the correct number of arguments
...s to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory.
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CSS: center element within a element
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Set text-align:center; to the parent div, and margin:auto; to the child div.
#parent {
text-align:center;
background-color:blue;
height:400px;
width:600px;
}
.block {
height:100px;
width:200px;
text-align:left;
}
.center {
...
Why doesn't JavaScript have a last method? [closed]
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Because Javascript changes very slowly. And that's because people upgrade browsers slowly.
Many Javascript libraries implement their own last() function. Use one!
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schema builder laravel migrations unique on two columns
...lso somehow missed the fact the second param is to manually name the index and I had an automatically generated index name which was too long. Thank you, man! +1
– Ciprian Mocanu
Feb 2 '16 at 9:04
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How to create an exit message
Is there a one line function call that quits the program and displays a message? I know in Perl it's as simple as:
4 Answer...