array.map() function
array.map() is experimental and subject to change at any time.
array.map() iterates over an array, applies a function to each element to produce a new element,
and then returns a new array.
Deprecated
Experimental array.map() is deprecated in favor of
array.map().
Function type signature
(<-arr: [A], fn: (x: A) => B) => [B]For more information, see Function type signatures.
Parameters
arr
Array to operate on. Defaults is the piped-forward array (<-).
fn
(Required)
Function to apply to elements. The element is represented by x in the function.
Examples
Convert an array of integers to an array of records
import "experimental/array"
a = [
1,
2,
3,
4,
5,
]
b = a |> array.map(fn: (x) => ({_value: x}))
// b returns [{_value: 1}, {_value: 2}, {_value: 3}, {_value: 4}, {_value: 5}]
// Output the array of records as a table
array.from(rows: b)Was this page helpful?
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