# ArrayNew Return new array ## Method Signature ``` ArrayNew() ``` ### Arguments This function does not accept any arguments ## Examples ### Create the One dimensional array Uses the arrayNew function to create the new array [Run Example](https://try.boxlang.io/?code=eJx1jkELgkAUhM%2Furxg8KQhieRMDOwR1qIP9gYVesbSt8txlsei%2Ft4rRqcvM4c18bwz5hlmOqCEnP5JPUCCtxNA9aDmJPMeZpRl6pYnhO75L7py54NoxtvsdmKxjAzv2JJIkoG5FNulq1vWsJVLUG7xENH9qyf4PViL6ItlRJd5pArNMzRAqZYa40RpqgCet46niWVk6Odu7QD60p2NLrKRWT%2FqVw4aQ%2FACv%2B0zp) ```java newArray = arrayNew( 1 ); someArray = // Transpiler workaround for BIF return type (( arg1, arg2, arg3, arg4 ) => { arraySet( arg1, arg2, arg3, arg4 ); return true; })( newArray, 1, 4, "All is well" ); writeOutput( JSONSerialize( newArray ) ); ``` Result: \["All is well", "All is well", "All is well", "All is well"] ### Create the Two dimensional array Uses the arrayNew function to create the new array [Run Example](https://try.boxlang.io/?code=eJzLSy13LCpKrFSwVUgE0X6p5RoKRgqa1lx5UJloBUOFWDABVKPklllUXKJQlphTmqpElhoj%2FGqMkMwJTk3Oz0vBpcgIq6LyosySVP%2FSkoLSEg0Fr2B%2Fv%2BDUoszEnMyqVA0FmAEKmiD%2FAQDN5k2Q) ```java newArray = arrayNew( 2 ); newArray[ 1 ][ 1 ] = "First value"; newArray[ 1 ][ 1 ] = "First value"; newArray[ 1 ][ 2 ] = "First value"; newArray[ 2 ][ 1 ] = "Second value"; newArray[ 2 ][ 2 ] = "Second value"; writeOutput( JSONSerialize( newArray ) ); ``` Result: \[\["First value", "First value"],\["Second value", "Second value"]] ### Create unsynchronized array Uses the arrayNew function to create the new unsynchronized array [Run Example](https://try.boxlang.io/?code=eJzLSy13LCpKrFSwVUgE0X6p5RoKhjoKaYk5xakKmtZceVAFeokFBal5KRoKSvl5qUogmfKizJJU%2F9KSgtISDQWvYH%2B%2F4NSizMSczKpUDQWYLgVNkEoAs4AhBw%3D%3D) ```java newArray = arrayNew( 1, false ); newArray.append( "one" ); writeOutput( JSONSerialize( newArray ) ); ``` Result: \["one"] ### Create an array using implicit notation Instead of using arrayNew you can also create an array using square brackets. [Run Example](https://try.boxlang.io/?code=eJzLSy13LCpKrFSwVYhW4OJUys9LVdIB0iXl%2BUpcsdZc5UWZJan%2BpSUFpSUaCl7B%2Fn7BqUWZiTmZVakaCnkwvZoKmtZcAEruFrI%3D) ```java newArray = [ "one", "two" ]; writeOutput( JSONSerialize( newArray ) ); ``` Result: \["one", "two"] ### Create an array with data type When using data types on array creation, items are converted if possible, otherwise an error is thrown. ```java typedArray = arrayNew[ "boolean" ]( 1 ); typedArray[ 1 ] = true; typedArray[ 2 ] = "true"; typedArray[ 3 ] = 1; typedArray[ 4 ] = "1"; typedArray[ 5 ] = "yes"; typelessArray = arrayNew( 1 ); typelessArray[ 1 ] = true; typelessArray[ 2 ] = "true"; typelessArray[ 3 ] = 1; typelessArray[ 4 ] = "1"; typelessArray[ 5 ] = "yes"; writeOutput( JSONSerialize( [ typedArray, typelessArray ] ) ); ``` Result: \[\[true,true,true,true,null,true],\[true,"true",1,"1",null,"yes"]] ### Additional Examples [Run Example](https://try.boxlang.io/?code=eJxLVLBVSCwqSqz0Sy3XUDBU0LTm0tdX8MwtyMlMziyBSCnk5ZcklmTm53El6iUWFKTmpWgoRMdClZZnlmQolCXmlKYWI0tzcSolKukAySQQaQzEJkAcHQskqrk4OZ39fQN8XCMUrBRKikpTuThrgeKFpalFEGcoZabopCSWpCopaHKB7UkpzS3QUEgEMQGlfTAO) ```java a = arrayNew( 1 ); // Implicit array notation a.append( [] ); // with values a.append( [ "a", "b", 3, 4, [], { COMPLEX : true }, queryNew( "id,date" ) ] ); dump( a ); ``` ## Related * [ArrayAppend](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayappend) * [ArrayAvg](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayavg) * [ArrayChunk](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraychunk) * [ArrayClear](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayclear) * [ArrayContains](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraycontains) * [ArrayContainsNoCase](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraycontainsnocase) * [ArrayDelete](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraydelete) * [ArrayDeleteAt](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraydeleteat) * [ArrayDeleteNoCase](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraydeletenocase) * [ArrayEach](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayeach) * [ArrayEvery](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayevery) * [ArrayFilter](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfilter) * [ArrayFind](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfind) * [ArrayFindAll](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfindall) * [ArrayFindAllNoCase](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfindallnocase) * [ArrayFindFirst](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfindfirst) * [ArrayFindNoCase](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfindnocase) * [ArrayFirst](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayfirst) * [ArrayFlatMap](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayflatmap) * [ArrayFlatten](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayflatten) * [ArrayGetMetadata](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraygetmetadata) * [ArrayGroupBy](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraygroupby) * [ArrayIndexExists](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayindexexists) * [ArrayInsertAt](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayinsertat) * [ArrayIsDefined](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayisdefined) * [ArrayLast](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraylast) * [ArrayMap](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymap) * [ArrayMax](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymax) * [ArrayMedian](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymedian) * [ArrayMerge](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymerge) * [ArrayMid](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymid) * [ArrayMin](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraymin) * [ArrayNone](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraynone) * [ArrayPop](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraypop) * [ArrayPrepend](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayprepend) * [ArrayPush](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraypush) * [ArrayRange](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayrange) * [ArrayReduce](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayreduce) * [ArrayReduceRight](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayreduceright) * [ArrayReject](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayreject) * [ArrayResize](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayresize) * [ArrayReverse](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayreverse) * [ArraySet](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayset) * [ArrayShift](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayshift) * [ArraySlice](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayslice) * [ArraySome](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraysome) * [ArraySort](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraysort) * [ArraySplice](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraysplice) * [ArraySum](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraysum) * [ArraySwap](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayswap) * [ArrayToList](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraytolist) * [ArrayToStruct](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraytostruct) * [ArrayTranspose](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arraytranspose) * [ArrayUnique](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayunique) * [ArrayUnshift](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayunshift) * [ArrayZip](https://boxlang.ortusbooks.com/boxlang-language/reference/built-in-functions/array/arrayzip) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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