> 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/array/arrayclear.md). # ArrayClear Clear all items from array ## Method Signature ``` ArrayClear(array=[modifiableArray]) ``` ### Arguments | Argument | Type | Required | Description | Default | | -------- | ----------------- | -------- | ------------------- | ------- | | `array` | `modifiableArray` | `true` | The array to clear. | | ## Examples ### Clear the value of an array Uses the arrayClear function to clear the value of an array [Run Example](https://try.boxlang.io/?code=eJw9js0KgkAUhdfepzi4GiGQ1mKQQdGqiKBFtBjwVoM2I9cZRKJ3Tw1bnY%2FzA6d1L16L6B45rqAoPnEZLwa9PI3niXbCbCcq6vCzjsZWMd0y6mRoHYJvgleUpjiLtm1jahZ0TiotLtgSdyco9lsI%2ByAWvm%2BYlIKWxxIJ8hXeFOnxxKZmLXOQUTQPJHBGn0Sh%2Fd9NxsIXzbM43A%3D%3D) ```java someArray = [ "Red", "White", "Green", "Blue", "Pink" ]; writeOutput( // Transpiler workaround for BIF return type (( arg1 ) => { arrayClear( arg1 ); return true; })( someArray ) ); ``` Result: Yes ### Clear the value of an array To clear the value of an array [Run Example](https://try.boxlang.io/?code=eJw9js0KgkAUhdfepzi4GiGQ1mKQQdGqiKBFtBjwVoM2I9cZRKJ3Tw1bnY%2FzA6d1L16L6B45rqAoPnEZLwa9PI3niXbCbCcq6vCzjsZWMd0y6mRoHYJvgleUpjiLtm1jahZ0TiotLtgSdyco9lsI%2ByAWvm%2BYlIKWxxIJ8hXeFOnxxKZmLXOQUTQPJHBGn0Sh%2Fd9NxsIXzbM43A%3D%3D) ```java someArray = [ "Red", "White", "Green", "Blue", "Pink" ]; writeOutput( // Transpiler workaround for BIF return type (( arg1 ) => { arrayClear( arg1 ); return true; })( someArray ) ); ``` Result: true ### Clear value of an array using member function Uses the member function is the same as running arrayClear. [Run Example](https://try.boxlang.io/?code=eJzLK81NSi1yLCpKrFSwVYhW4OI01OHiNAJiY65Ya67yosySVP%2FSkoLSEg2FPIRaPeec1MQiDU0FTWsuAJ1WE9Q%3D) ```java numberArray = [ 1, 2, 3 ]; writeOutput( numberArray.Clear() ); ``` Result: Yes ### Additional Examples [Run Example](https://try.boxlang.io/?code=eJxljk0OgjAQhdfMKd5SE6Wi7AgLwzGMi6oTIaGlKVMNt7dgJEQWs3iT9%2FMphcqzFu6hLbT3esC9s6Ib29gncnDLhq30eDdSQ2qGDebGvkeGPfKUfrLEhZJsR8kx3ileTteCHsG4zRzZFlAKXRAXYuNYtlqcWim6qpa1X5qifo2OmXMiOsyEKZ3H95RbTq4Y6B%2BCjZPhW0ofQhRX2g%3D%3D) ```java // Creates an array containing 4 elements with the numbers 1 - 4. numbers = [ 1, 2, 3, 4 ]; dump( numbers ); // outputs the array containing 1 - 4 // Clears the array leaving an array with 0 elements. ArrayClear( numbers ); dump( numbers ); // outputs the empty array ``` ## Related * [ArrayAppend](/boxlang-language/reference/built-in-functions/array/arrayappend.md) * [ArrayAvg](/boxlang-language/reference/built-in-functions/array/arrayavg.md) * [ArrayChunk](/boxlang-language/reference/built-in-functions/array/arraychunk.md) * [ArrayContains](/boxlang-language/reference/built-in-functions/array/arraycontains.md) * [ArrayContainsNoCase](/boxlang-language/reference/built-in-functions/array/arraycontainsnocase.md) * [ArrayDelete](/boxlang-language/reference/built-in-functions/array/arraydelete.md) * [ArrayDeleteAt](/boxlang-language/reference/built-in-functions/array/arraydeleteat.md) * [ArrayDeleteNoCase](/boxlang-language/reference/built-in-functions/array/arraydeletenocase.md) * [ArrayEach](/boxlang-language/reference/built-in-functions/array/arrayeach.md) * [ArrayEvery](/boxlang-language/reference/built-in-functions/array/arrayevery.md) * [ArrayFilter](/boxlang-language/reference/built-in-functions/array/arrayfilter.md) * [ArrayFind](/boxlang-language/reference/built-in-functions/array/arrayfind.md) * [ArrayFindAll](/boxlang-language/reference/built-in-functions/array/arrayfindall.md) * [ArrayFindAllNoCase](/boxlang-language/reference/built-in-functions/array/arrayfindallnocase.md) * [ArrayFindFirst](/boxlang-language/reference/built-in-functions/array/arrayfindfirst.md) * [ArrayFindNoCase](/boxlang-language/reference/built-in-functions/array/arrayfindnocase.md) * [ArrayFirst](/boxlang-language/reference/built-in-functions/array/arrayfirst.md) * [ArrayFlatMap](/boxlang-language/reference/built-in-functions/array/arrayflatmap.md) * [ArrayFlatten](/boxlang-language/reference/built-in-functions/array/arrayflatten.md) * [ArrayGetMetadata](/boxlang-language/reference/built-in-functions/array/arraygetmetadata.md) * [ArrayGroupBy](/boxlang-language/reference/built-in-functions/array/arraygroupby.md) * [ArrayIndexExists](/boxlang-language/reference/built-in-functions/array/arrayindexexists.md) * [ArrayInsertAt](/boxlang-language/reference/built-in-functions/array/arrayinsertat.md) * [ArrayIsDefined](/boxlang-language/reference/built-in-functions/array/arrayisdefined.md) * [ArrayLast](/boxlang-language/reference/built-in-functions/array/arraylast.md) * [ArrayMap](/boxlang-language/reference/built-in-functions/array/arraymap.md) * [ArrayMax](/boxlang-language/reference/built-in-functions/array/arraymax.md) * [ArrayMedian](/boxlang-language/reference/built-in-functions/array/arraymedian.md) * [ArrayMerge](/boxlang-language/reference/built-in-functions/array/arraymerge.md) * [ArrayMid](/boxlang-language/reference/built-in-functions/array/arraymid.md) * [ArrayMin](/boxlang-language/reference/built-in-functions/array/arraymin.md) * [ArrayNew](/boxlang-language/reference/built-in-functions/array/arraynew.md) * [ArrayNone](/boxlang-language/reference/built-in-functions/array/arraynone.md) * [ArrayPop](/boxlang-language/reference/built-in-functions/array/arraypop.md) * [ArrayPrepend](/boxlang-language/reference/built-in-functions/array/arrayprepend.md) * [ArrayPush](/boxlang-language/reference/built-in-functions/array/arraypush.md) * [ArrayRange](/boxlang-language/reference/built-in-functions/array/arrayrange.md) * [ArrayReduce](/boxlang-language/reference/built-in-functions/array/arrayreduce.md) * [ArrayReduceRight](/boxlang-language/reference/built-in-functions/array/arrayreduceright.md) * [ArrayReject](/boxlang-language/reference/built-in-functions/array/arrayreject.md) * [ArrayResize](/boxlang-language/reference/built-in-functions/array/arrayresize.md) * [ArrayReverse](/boxlang-language/reference/built-in-functions/array/arrayreverse.md) * [ArraySet](/boxlang-language/reference/built-in-functions/array/arrayset.md) * [ArrayShift](/boxlang-language/reference/built-in-functions/array/arrayshift.md) * [ArraySlice](/boxlang-language/reference/built-in-functions/array/arrayslice.md) * [ArraySome](/boxlang-language/reference/built-in-functions/array/arraysome.md) * [ArraySort](/boxlang-language/reference/built-in-functions/array/arraysort.md) * [ArraySplice](/boxlang-language/reference/built-in-functions/array/arraysplice.md) * [ArraySum](/boxlang-language/reference/built-in-functions/array/arraysum.md) * [ArraySwap](/boxlang-language/reference/built-in-functions/array/arrayswap.md) * [ArrayToList](/boxlang-language/reference/built-in-functions/array/arraytolist.md) * [ArrayToStruct](/boxlang-language/reference/built-in-functions/array/arraytostruct.md) * [ArrayTranspose](/boxlang-language/reference/built-in-functions/array/arraytranspose.md) * [ArrayUnique](/boxlang-language/reference/built-in-functions/array/arrayunique.md) * [ArrayUnshift](/boxlang-language/reference/built-in-functions/array/arrayunshift.md) * [ArrayZip](/boxlang-language/reference/built-in-functions/array/arrayzip.md) --- # Agent Instructions This documentation is published with GitBook. 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