docs-v2/content/flux/v0/stdlib/internal/debug/null.md

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debug.null() function `debug.null()` returns the null value with a given type.
flux_v0_ref
name parent identifier
debug.null internal/debug internal/debug/null
201 0.179.0

debug.null() returns the null value with a given type.

Function type signature
(?type: string) => A where A: Basic

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

type

Null type.

Supported types:

  • string
  • bytes
  • int
  • uint
  • float
  • bool
  • time
  • duration
  • regexp

Examples

Include null values in an ad hoc stream of tables

import "array"
import "internal/debug"

array.from(rows: [{a: 1, b: 2, c: 3}, {a: debug.null(type: "int"), b: 5, c: 6}])

{{< expand-wrapper >}} {{% expand "View example output" %}}

Output data

a b c
1 2 3
5 6

{{% /expand %}} {{< /expand-wrapper >}}