count

Returns the number of times a value appears in a list. A closure might be given which can be used as a shortcut for .filter().len().

This function does not generate a change.

Function

array.count(any)

Arguments

Return value

First item in the list.

Example

This code shows an example using count():

[1, 4, 2, 9, 7, 8, 9, 3, 1].count(9);

Return value in JSON format

2

Another example using a callback:

// Count the values larger than 5
[1, 4, 2, 9, 7, 8, 9, 3, 1].count(|x| x > 5);

4