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Performance difference for control structures 'for' and 'foreach' in C#
..._0030: ret
} // end of method Test::IterateOverList
The compiler treats arrays differently, converting a foreach loop basically to a for loop, but not List<T>. Here's the equivalent code for an array:
static void IterateOverArray(object[] array)
{
foreach (object o in array)
{
...
Rank items in an array using Python/NumPy, without sorting array twice
I have an array of numbers and I'd like to create another array that represents the rank of each item in the first array. I'm using Python and NumPy.
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ORDER BY the IN value list
...e the set-returning function like a table.
A string literal to hand in the array instead of an ARRAY constructor may be easier to implement with some clients.
Detailed explanation:
PostgreSQL unnest() with element number
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How do I create an average from a Ruby array?
How would get find an average from an array?
20 Answers
20
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How do you check if a variable is an array in JavaScript? [duplicate]
I would like to check whether a variable is either an array or a single value in JavaScript.
23 Answers
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How are multi-dimensional arrays formatted in memory?
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code:
6 Answers
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Convert array of strings into a string in Java
I want the Java code for converting an array of strings into an string.
13 Answers
13
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Is it possible to send a variable number of arguments to a JavaScript function?
...e to send a variable number of arguments to a JavaScript function, from an array?
12 Answers
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Store select query's output in one array in postgres
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There are two ways. One is to aggregate:
SELECT array_agg(column_name::TEXT)
FROM information.schema.columns
WHERE table_name = 'aean'
The other is to use an array constructor:
SELECT ARRAY(
SELECT column_name
FROM information.schema.columns
WHERE table_name = 'aean')...
Creating an array of objects in Java
I am new to Java and for the time created an array of objects in Java.
8 Answers
8
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