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How to check if a file is a valid image file?
...e a magic number for various file formats. You could check for this in addition to your exception checking above.
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How to initialize a list of strings (List) with many string values
How is it possible to initialize (with a C# initializer) a list of strings? I have tried with the example below but it's not working.
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What should my Objective-C singleton look like? [closed]
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Another option is to use the +(void)initialize method. From the documentation:
The runtime sends initialize to each class in a program exactly one time just before the class, or any class that inherits from it, is sent its first message from within the progr...
Difference between Math.Floor() and Math.Truncate()
...runcate rounds towards zero. Thus, Math.Truncate is like Math.Floor for positive numbers, and like Math.Ceiling for negative numbers. Here's the reference.
For completeness, Math.Round rounds to the nearest integer. If the number is exactly midway between two integers, then it rounds towards the ev...
Gradients on UIView and UILabels On iPhone [duplicate]
My application needs to display text in either a UIView or UILabel but the back ground must be a gradient as opposed to a true UIColor . Using a graphics program to create desired look is no good as the text may vary depending on data returned from a server.
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What does $$ (dollar dollar or double dollar) mean in PHP?
Example is a variable declaration within a function:
7 Answers
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How do I sort strings alphabetically while accounting for value when a string is numeric?
...OrderBy(x => x, new SemiNumericComparer()))
{
Console.WriteLine(thing);
}
}
public class SemiNumericComparer: IComparer<string>
{
/// <summary>
/// Method to determine if a string is a number
/// </summary>
/// <param name="value">Stri...
Log all queries in mysql
Is it possible for me to turn on audit logging on my mysql database?
10 Answers
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How to get the entire document HTML as a string?
Is there a way in JS to get the entire HTML within the html tags, as a string?
15 Answers
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Use numpy array in shared memory for multiprocessing
I would like to use a numpy array in shared memory for use with the multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array.
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