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Determine if string is in list in JavaScript
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The only problem with Array.prototype.indexOf is that it will not work on IE, sadly even IE8 lacks this method.
– Christian C. Salvadó
Mar 12 '10 at 2:24
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Combined area of overlapping circles
... perimeter (e.g. B,D,F,H on the following diagram). Connect them together with the centres of the corresponding circles to form a polygon. The area of the union of the circles is the area of the polygon + the area of the circle slices defined by consecutive intersection points and the circle center ...
What will happen if I modify a Python script while it's running?
...hon script that will take a long time to run, what will happen if I modify it while it's running? Will the result be different?
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How to default to other directory instead of home directory
...ing on a windows machine. The only place I need for linux command line is Git Bash. The problem is: When I open it, I am in the home directory. I have to change the directory to my workspace, like:
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How to Correctly handle Weak Self in Swift Blocks with Arguments
...k self].
If self will never be nil in the closure use [unowned self].
If it's crashing when you use [unowned self] I would guess that self is nil at some point in that closure, which is why you had to go with [weak self] instead.
I really liked the whole section from the manual on using strong, ...
PHP PDO: charset, set names?
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You'll have it in your connection string like:
"mysql:host=$host;dbname=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PD...
Autoresizing masks programmatically vs Interface Builder / xib / nib
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Yes, Interface Builder has it "reversed" in a sense (or UIView, depending on how you look at it). Your cited "scenarios" are correct.
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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
...terface: some of the interface's methods can be completely missing (i.e. neither an abstract declaration or an actual implementation is present), but the compiler does not complain.
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Display an array in a readable/hierarchical format
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Ah, in my case I was working with a multidimensional array. I haven't left a comment before so when I saw no one else had pointed this out I thought it might be a perfect opportunity!
– Alesana
Dec 6 '16 at 20:13
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How to force cp to overwrite without confirmation
I'm trying to use the cp command and force an overwrite.
16 Answers
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