# IsNumeric

Tests whether a value is numeric

## Method Signature

```
IsNumeric(string=[any], locale=[string])
```

### Arguments

| Argument | Type     | Required | Description                                                                                     | Default |
| -------- | -------- | -------- | ----------------------------------------------------------------------------------------------- | ------- |
| `string` | `any`    | `true`   |                                                                                                 |         |
| `locale` | `string` | `false`  | Optional locale string, otherwise the context locale default is used when parsing string values |         |

## Examples

### Simple Lsisnumeric Example

Check whether the string is number or not in locale

[Run Example](https://try.boxlang.io/?code=eJzLKfYs9ivNTS3KTNZQUApJzVNS0LTmAgBZgQaw)

```java
lsIsNumeric( "Ten" );

```

Result: false

### Simple Lsisnumeric Example

Check whether the string is number or not in locale

[Run Example](https://try.boxlang.io/?code=eJzLKfYs9ivNTS3KTNZQUDIxM7dQUtC05gIAXLgGYg%3D%3D)

```java
lsIsNumeric( "4678" );

```

Result: true

### Additional Examples

[Run Example](https://try.boxlang.io/?code=eJwrL8osSc0vLSkoLdFQyCn2LPYrzU0tykzWUFAyNDJWUtBUUFNQskkqsgMyrbnKcatOyyxLJUG5sZ6RIQnKDQwMjUhSrmcANh6%2FMkM9YyNDHQMDNJMV9PUV0hJzilOJ0qujoJSeWpSbmIfuPpAxJUWlqVwAR9doVw%3D%3D)

```java
writeoutput( lsIsNumeric( "123" ) & "<br>" );
writeoutput( lsIsNumeric( "five" ) & "<br>" );
writeoutput( lsIsNumeric( "3.21" ) & "<br>" );
writeoutput( lsIsNumeric( "0012" ) & "<br>" );
writeoutput( lsIsNumeric( "00.01" ) );
writeoutput( lsIsNumeric( "1.321,00" ) & "<br>" ); // false
writeoutput( lsIsNumeric( "1.321,00", "german" ) & "<br>" );
 // true

```

## Related

* [ArrayIsEmpty](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/arrayisempty)
* [arrayIsEmpty](https://github.com/ortus-boxlang/boxlang-docs/blob/v1.x/boxlang-language/reference/built-in-functions/decision/arrayIsEmpty.md)
* [Attempt](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/attempt)
* [IsArray](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isarray)
* [IsBinary](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isbinary)
* [IsBoolean](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isboolean)
* [IsClosure](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isclosure)
* [IsCustomFunction](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/iscustomfunction)
* [IsDate](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isdate)
* [IsDateObject](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isdateobject)
* [IsDebugMode](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isdebugmode)
* [IsDefined](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isdefined)
* [IsEmpty](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isempty)
* [IsFileObject](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isfileobject)
* [IsIPv6](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isipv6)
* [IsJSON](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isjson)
* [IsLeapYear](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isleapyear)
* [IsLocalHost](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/islocalhost)
* [IsNull](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isnull)
* [IsNumericDate](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isnumericdate)
* [IsObject](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isobject)
* [IsQuery](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isquery)
* [IsSimpleValue](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/issimplevalue)
* [IsStruct](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isstruct)
* [IsValid](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isvalid)
* [IsXML](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxml)
* [IsXmlAttribute](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxmlattribute)
* [IsXMLDoc](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxmldoc)
* [IsXMLElem](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxmlelem)
* [IsXMLNode](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxmlnode)
* [IsXMLRoot](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isxmlroot)
* [LSIsNumeric](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/lsisnumeric)
* [structIsEmpty](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/structisempty)