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Get a random item from a JavaScript array [duplicate]
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@AnkitPatial: That's a way to "scramble" an array, but the question is about getting a randomly selected element from an array. There's a big difference.
– damd
Mar 4 '16 at 15:04
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What does the “map” method do in Ruby?
...nged unless you use map!):
[1, 2, 3].map { |n| n * n } #=> [1, 4, 9]
Array and Range are enumerable types. map with a block returns an Array. map! mutates the original array.
Where is this helpful, and what is the difference between map! and each? Here is an example:
names = ['danil', 'edmu...
JavaScript loop through json array?
I am trying to loop through the following json array:
11 Answers
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Best way to reverse a string
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public static string Reverse( string s )
{
char[] charArray = s.ToCharArray();
Array.Reverse( charArray );
return new string( charArray );
}
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Pass array to mvc Action via AJAX
I'm trying to pass an array (or IEnumerable) of ints from via AJAX to an MVC action and I need a little help.
11 Answers
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How to remove an element from an array in Swift
How can I unset/remove an element from an array in Apple's new language Swift?
18 Answers
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How do I get an empty array of any size in python?
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If by "array" you actually mean a Python list, you can use
a = [0] * 10
or
a = [None] * 10
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Convert a matrix to a 1 dimensional array
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That's a vector, and not a 1-d array.
– hadley
Sep 29 '10 at 20:35
hmm. Th...
How to return a part of an array in Ruby?
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Yes, Ruby has very similar array-slicing syntax to Python. Here is the ri documentation for the array index method:
--------------------------------------------------------------- Array#[]
array[index] -> obj or nil
ar...
What is the JavaScript >>> operator and how do you use it?
I was looking at code from Mozilla that add a filter method to Array and it had a line of code that confused me.
7 Answers
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