87 lines
1.7 KiB
Markdown
87 lines
1.7 KiB
Markdown
---
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title: debug.null() function
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description: >
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`debug.null()` returns the null value with a given type.
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menu:
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flux_v0_ref:
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name: debug.null
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parent: internal/debug
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identifier: internal/debug/null
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weight: 201
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introduced: 0.179.0
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---
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<!------------------------------------------------------------------------------
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IMPORTANT: This page was generated from comments in the Flux source code. Any
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edits made directly to this page will be overwritten the next time the
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documentation is generated.
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To make updates to this documentation, update the function comments above the
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function definition in the Flux source code:
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https://github.com/influxdata/flux/blob/master/stdlib/internal/debug/debug.flux#L86-L86
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Contributing to Flux: https://github.com/influxdata/flux#contributing
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Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md
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------------------------------------------------------------------------------->
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`debug.null()` returns the null value with a given type.
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##### Function type signature
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```js
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(?type: string) => A where A: Basic
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```
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{{% caption %}}
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For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
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{{% /caption %}}
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## Parameters
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### type
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Null type.
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**Supported types**:
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- string
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- bytes
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- int
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- uint
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- float
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- bool
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- time
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- duration
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- regexp
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## Examples
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### Include null values in an ad hoc stream of tables
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```js
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import "array"
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import "internal/debug"
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array.from(rows: [{a: 1, b: 2, c: 3}, {a: debug.null(type: "int"), b: 5, c: 6}])
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```
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{{< expand-wrapper >}}
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{{% expand "View example output" %}}
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#### Output data
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| a | b | c |
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| -- | -- | -- |
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| 1 | 2 | 3 |
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| | 5 | 6 |
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{{% /expand %}}
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{{< /expand-wrapper >}}
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