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Convert between UIImage and Base64 string
...ta format
let imageData:NSData = NSData.init(contentsOfURL: url)!
Swift 2.0 > Encoding
let strBase64:String = imageData.base64EncodedStringWithOptions(.Encoding64CharacterLineLength)
Swift 2.0 > Decoding
let dataDecoded:NSData = NSData(base64EncodedString: strBase64, options: NSDataBase64Dec...
Behaviour for significant change location API when terminated/suspended?
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80
Since I asked this question, I have done a fair bit of testing (mostly on the train between home...
CHECK constraint in MySQL is not working
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MySQL 8.0.16 is the first version that supports CHECK constraints.
Read https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
If you use MySQL 8.0.15 or earlier, the MySQL Reference Manual says:
The CHECK...
How to get a variable value if variable name is stored as string?
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answered Dec 17 '09 at 12:09
Phil RossPhil Ross
22.5k99 gold badges6666 silver badges7474 bronze badges
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How to make inline functions in C#
...ere are several syntaxes available.
Anonymous methods were added in C# 2.0:
Func<int, int, int> add = delegate(int x, int y)
{
return x + y;
};
Action<int> print = delegate(int x)
{
Console.WriteLine(x);
}
Action<int> helloWorld = delegate // parameters can be elided if ...
How do you easily horizontally center a using CSS? [duplicate]
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806
In the case of a non-fixed width div (i.e. you don't know how much space the div will occupy).
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How to find and return a duplicate value in array
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20 Answers
20
Active
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Equation (expression) parser with precedence?
...expr = expr `chainl1` toOp
expr = optChainl1 term addop (toScalar 0)
term = factor `chainl1` mulop
factor = sexpr `chainr1` powop
sexpr = parens aexpr
<|> scalar
<|> ident
powop = sym "^" >>= return . (B Pow)
<|> sym "^-" >...
Loop backwards using indices in Python?
I am trying to loop from 100 to 0. How do I do this in Python?
15 Answers
15
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How Python web frameworks, WSGI and CGI fit together
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+250
How WSGI, CGI, and the frameworks are all connected?
Apache listens on port 80. It gets an HTTP request. It parses the request to f...