Documentation

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)

View example output


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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: