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What is the purpose of a plus symbol before a variable?
...icating the if on whether or not d is a non-zero number.
Reference here. And, as pointed out in comments, here.
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Randomize a List
What is the best way to randomize the order of a generic list in C#? I've got a finite set of 75 numbers in a list I would like to assign a random order to, in order to draw them for a lottery type application.
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Get cursor position (in characters) within a text Input field
...s for me without this line. Be careful if you use blur event on your input and execute that function inside a callback.
– Kirill Reznikov
Sep 14 '15 at 9:35
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Git: which is the default configured remote for branch?
...nd out which is the "default configured remote for your current branch" ? And how do I set it?
4 Answers
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.gitignore file, where should I put it in my xcode project?
...ctice is to have one single .gitignore file on the project root directory, and place all files that you want to ignore in it, like this:
ignoredFile.whatever
ignoredDirectory/*
directory/ignoredFileInsideDirectory
.svn
Once you create the .gitignore file, the ignore files that have changes or are...
How do I create an immutable Class?
...rayList.ReadOnly or similar - you can combine this with the previous point and store a read-only copy to be returned when callers access it), return an enumerator, or use some other method/property that allows read-only access into the collection
keep in mind that you still may have the appearance o...
Why is the minimalist, example Haskell quicksort not a “true” quicksort?
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The true quicksort has two beautiful aspects:
Divide and conquer: break the problem into two smaller problems.
Partition the elements in-place.
The short Haskell example demonstrates (1), but not (2). How (2) is done may not be obvious if you don't already know the technique!...
Is there shorthand for returning a default value if None in Python? [duplicate]
In C#, I can say x ?? "" , which will give me x if x is not null, and the empty string if x is null. I've found it useful for working with databases.
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URL encode sees “&” (ampersand) as “&” HTML entity
... answered Aug 22 '10 at 13:59
Andy EAndy E
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String's Maximum length in Java - calling length() method
...ALUE, which is 2^31 - 1 (or approximately 2 billion.)
In terms of lengths and indexing of arrays, (such as char[], which is probably the way the internal data representation is implemented for Strings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following:
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