# IsEmpty

Determine whether a given value is empty.

We check for emptiness of anything that can be casted to: Array, Struct, Query, or String.

## Method Signature

```
IsEmpty(value=[any])
```

### Arguments

| Argument | Type  | Required | Description                              | Default |
| -------- | ----- | -------- | ---------------------------------------- | ------- |
| `value`  | `any` | `true`   | The value/object to check for emptiness. |         |

## Examples

### Test to see if a struct is empty

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLlGwVaiuteYqL8osSfUvLSkoLdFQKAbLeBa75haUVGoo5MKUaipoWnMBAGaYFCQ%3D)

```java
myStruct = {};
writeOutput( structIsEmpty( myStruct ) );

```

Result: true

### Test to see if a struct contains something

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLgnPLMkIycjMSy9WsFWoVuDiVMrPS1VSsFJQSsvPV9IB8kvK88H8pMQiJa5aa67yosySVP%2FSkoLSEg2FYrAhnsWuuQUllRoKuZimaipoWnMBAK9QI8s%3D)

```java
myStructWithThings = { 
	"one" : "foo",
	"two" : "bar"
};
writeOutput( structIsEmpty( myStructWithThings ) );

```

Result: false

### Using Member Function

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLlGwVaiuteYqL8osSfUvLSkoLdFQyIXK6XkWu%2BYWlFRqaCpoWnMBANb3EW0%3D)

```java
myStruct = {};
writeOutput( myStruct.IsEmpty() );

```

Result: true

### Additional Examples

[Run Example](https://try.boxlang.io/?code=eJzT11fwy89TSM0tKKlUKC4pKk0u4UrMy8xNzClWsFWo5uJ09g9XsFJQys3PV9Lh4gzwdAfx8jPzspW4aq259PUVXJG1piUW5YL0QaSCwYKexWAlGlBjNblSkzPyNRSUbArsHKE2QXQrZBZDHAK0QUENTbcCzFWaQCklG%2F0COyUFTSy2gFyAbIUbyEXEmA92OqrhAMfTWKE%3D)

```java
// Non empty struct
animals = {
	COW : "moo",
	PIG : "oink"
};
// Empty struct
farm = {};
// StructIsEmpty(animals)
echo( "<p>Animals struct is empty: " & StructIsEmpty( animals ) & "</p>" );
// StructIsEmpty(farm)
echo( "<p>Farm struct is empty: " & StructIsEmpty( farm ) & "</p>" );

```

## 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)
* [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)
* [IsNumeric](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/decision/isnumeric)
* [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)


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