---
title: types.isNumeric() function
description: types.isNumeric() tests if a value is a numeric type (int, uint, or float).
url: https://docs.influxdata.com/flux/v0/stdlib/types/isnumeric/
estimated_tokens: 1231
product: Flux
version: v0
---

# types.isNumeric() function

-   Flux 0.187.0+
-   View InfluxDB support

`types.isNumeric()` tests if a value is a numeric type (int, uint, or float).

This is a helper function to test or filter for values that can be used in arithmetic operations or aggregations.

##### Function type signature

```js
(v: A) => bool where A: Basic
```

For more information, see [Function type signatures](/flux/v0/function-type-signatures/).

## Parameters

### v

(Required) Value to test.

## Examples

### Filter by numeric values

```js
import "types"

data
    |> filter(fn: (r) => types.isNumeric(v: r._value))
```

[](#view-example-input-and-output)

View example input and output

#### Input data

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | float | -2.18 |
| 2021-01-01T00:00:10Z | float | 10.92 |
| 2021-01-01T00:00:20Z | float | 7.35 |

| _time | *type | _value |
| --- | --- | --- |

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | bool | true |
| 2021-01-01T00:00:10Z | bool | true |
| 2021-01-01T00:00:20Z | bool | false |

| _time | *type | _value |
| --- | --- | --- |

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | string | smpl_g9qczs |
| 2021-01-01T00:00:10Z | string | smpl_0mgv9n |
| 2021-01-01T00:00:20Z | string | smpl_phw664 |

| _time | *type | _value |
| --- | --- | --- |

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | int | -2 |
| 2021-01-01T00:00:10Z | int | 10 |
| 2021-01-01T00:00:20Z | int | 7 |

#### Output data

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | float | -2.18 |
| 2021-01-01T00:00:10Z | float | 10.92 |
| 2021-01-01T00:00:20Z | float | 7.35 |

| _time | *type | _value |
| --- | --- | --- |

| _time | *type | _value |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | int | -2 |
| 2021-01-01T00:00:10Z | int | 10 |
| 2021-01-01T00:00:20Z | int | 7 |

[types](/flux/v0/tags/types/) [tests](/flux/v0/tags/tests/)