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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
... am currently making an app that will have multiple timers, which are basically all the same.
4 Answers
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How do you check in python whether a string contains only numbers?
....isdigit():
From the isdigit documentation:
str.isdigit()
Return True if all characters in the string are digits and there is at least one character, False otherwise. Digits include decimal characters and digits that need special handling, such as the compatibility superscript digits. This covers ...
Increment a value in Postgres
...', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
1 Answer
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What's the best way to convert a number to a string in JavaScript? [closed]
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like this:
var foo = 45;
var bar = '' + foo;
Actually, even though I typically do it like this for simple convenience, over 1,000s of iterations it appears for raw speed there is an advantage for .toString()
See Performance tests here (not by me, but found when I went to w...
Why should I declare a virtual destructor for an abstract class in C++?
...ual destructor.
You can forbid clients to call delete on a pointer to it by making its destructor protected. Working like this, it is perfectly safe and reasonable to omit a virtual destructor.
You will eventually end up with no virtual method table, and end up signalling your clients your intent...
Find document with array that contains a specific value
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@AeroWang use this db.person.find( { favouriteFoods: { $all: ["sushi", "sashimi"] } } ) will return all person loving both "sushi" and "sashimi" someone pointed it a few answers below
– benraay
Jul 1 at 14:20
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Determine device (iPhone, iPod Touch) with iOS
...b.com/1323251
UPDATE (01/14/11)
Obviously, this code is a bit out of date by now, but it can certainly be updated using the code on this thread provided by Brian Robbins which includes similar code with updated models. Thanks for the support on this thread.
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“open/close” SqlConnection or keep open?
...th static methods. Each of these methods opens/closes SQL connection when called:
6 Answers
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How to handle a lost KeyStore password in Android?
...st of words and I later found out it was three of these words in a certain order, but I had to figure it out myself. Thanks for sharing though, glad it helped other people
– Teo Inke
Jun 9 '16 at 22:40
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What's the difference between BaseAdapter and ArrayAdapter?
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Here is the difference:
BaseAdapter is a very generic adapter that allows you to do pretty much whatever you want. However, you have to do a bit more coding yourself to get it working.
ArrayAdapter is a more complete implementation that works well for data in arrays or ArrayLists. Similarly,...