> For the complete documentation index, see [llms.txt](https://boxlang.ortusbooks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/struct/structiscasesensitive.md).

# StructIsCaseSensitive

Returns whether the give struct is case sensitive

## Method Signature

```
StructIsCaseSensitive(struct=[structloose])
```

### Arguments

| Argument | Type     | Required | Description                 | Default |
| -------- | -------- | -------- | --------------------------- | ------- |
| `struct` | `struct` | `true`   | The struct to test for type |         |

## Examples

### Full Function with Explicit CaseSensitive

Show when the struct is explicitly set to casesensitive.

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLjFUsFWAsPxSyzUUlJITi1OLU%2FOKM0syy1KVFDStuXJhKvVcfVx9QeqVUnNcc%2F3zUpXQJY3Akj6puSXl%2FhiSxhCdQMmMolSQ3vKizJJU%2F9KSgNISDagbPIudgfYHw%2BzXUIAboaAJcgsAgzY7%2Bw%3D%3D)

```java
myStruct1 = StructNew( "casesensitive" );
myStruct1.ELEM1 = "elEmOne";
myStruct1.ELEM2 = "eLemtwO";
myStruct1.ELEM3 = "elemthree";
writeOutPut( StructIsCaseSensitive( myStruct1 ) );

```

Result: YES

### Member Function with Explicit CaseSensitive

Show when the struct is explicitly set to casesensitive.

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLjFUsFWAsPxSyzUUlJITi1OLU%2FOKM0syy1KVFDStuXJhKvVcfVx9QeqVUnNcc%2F3zUpXQJY3Akj6puSXl%2FhiSxhCdQMmMolSQ3vKizJJU%2F9KSgNISDQWE2sxiZ6AbgmFu0NAEOQIA3Ng5hA%3D%3D)

```java
myStruct1 = StructNew( "casesensitive" );
myStruct1.ELEM1 = "elEmOne";
myStruct1.ELEM2 = "eLemtwO";
myStruct1.ELEM3 = "elemthree";
writeOutPut( myStruct1.isCaseSensitive() );

```

Result: YES

### Full Function with Implicit Struct Creation and Default Case Sensitivity

Show when the struct is implicitly created.

[Run Example](https://try.boxlang.io/?code=eJzLrQwuKSpNLjFRsFWoVuDiVErNSc01VFKwUgCyXHP981KVdMCirrlGEFGf1NyScn%2BoaGquMVQtUDSjKDVViavWmqu8KLMk1b%2B0JKC0REMBYr5nsXNicWpwal5xZklmWaqGQi7cYk0FTWsuALPjKbA%3D)

```java
myStruct4 = { 
	"elem1" : "elEmOne",
	"elEm2" : "eLemtwO",
	"elem3" : "elemthree"
};
writeOutPut( StructIsCaseSensitive( myStruct4 ) );

```

Result: NO

## Related

* [StructAppend](/boxlang-language/reference/built-in-functions/struct/structappend.md)
* [StructClear](/boxlang-language/reference/built-in-functions/struct/structclear.md)
* [StructCopy](/boxlang-language/reference/built-in-functions/struct/structcopy.md)
* [StructDelete](/boxlang-language/reference/built-in-functions/struct/structdelete.md)
* [StructEach](/boxlang-language/reference/built-in-functions/struct/structeach.md)
* [StructEquals](/boxlang-language/reference/built-in-functions/struct/structequals.md)
* [StructEvery](/boxlang-language/reference/built-in-functions/struct/structevery.md)
* [StructFilter](/boxlang-language/reference/built-in-functions/struct/structfilter.md)
* [StructFind](/boxlang-language/reference/built-in-functions/struct/structfind.md)
* [StructFindKey](/boxlang-language/reference/built-in-functions/struct/structfindkey.md)
* [StructFindValue](/boxlang-language/reference/built-in-functions/struct/structfindvalue.md)
* [StructGet](/boxlang-language/reference/built-in-functions/struct/structget.md)
* [StructGetMetadata](/boxlang-language/reference/built-in-functions/struct/structgetmetadata.md)
* [StructInsert](/boxlang-language/reference/built-in-functions/struct/structinsert.md)
* [StructIsOrdered](/boxlang-language/reference/built-in-functions/struct/structisordered.md)
* [StructKeyArray](/boxlang-language/reference/built-in-functions/struct/structkeyarray.md)
* [StructKeyExists](/boxlang-language/reference/built-in-functions/struct/structkeyexists.md)
* [StructKeyList](/boxlang-language/reference/built-in-functions/struct/structkeylist.md)
* [StructKeyTranslate](/boxlang-language/reference/built-in-functions/struct/structkeytranslate.md)
* [StructMap](/boxlang-language/reference/built-in-functions/struct/structmap.md)
* [StructNew](/boxlang-language/reference/built-in-functions/struct/structnew.md)
* [StructNone](/boxlang-language/reference/built-in-functions/struct/structnone.md)
* [StructReduce](/boxlang-language/reference/built-in-functions/struct/structreduce.md)
* [StructSome](/boxlang-language/reference/built-in-functions/struct/structsome.md)
* [StructSort](/boxlang-language/reference/built-in-functions/struct/structsort.md)
* [StructToQueryString](/boxlang-language/reference/built-in-functions/struct/structtoquerystring.md)
* [StructToSorted](/boxlang-language/reference/built-in-functions/struct/structtosorted.md)
* [StructUpdate](/boxlang-language/reference/built-in-functions/struct/structupdate.md)
* [StructValueArray](/boxlang-language/reference/built-in-functions/struct/structvaluearray.md)


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