Boxlang 1.x Stable Released
BoxLang : A Modern Dynamic JVM Language
LogoLogo
APIDocsDownloadTrySourceSupport
  • Introduction
    • Contributing Guide
    • Release History
      • 1.2.0
      • 1.1.0
      • 1.0.1
      • 1.0.0
      • RC Stage
        • 1.0.0-RC.1
        • 1.0.0-RC.2
        • 1.0.0-RC.3
      • Beta Stage
        • 1.0.0-Beta27
        • 1.0.0-Beta26
        • 1.0.0-Beta25
        • 1.0.0-Beta24
        • 1.0.0-Beta23
        • 1.0.0-Beta22
        • 1.0.0-Beta21
        • 1.0.0-Beta20
        • 1.0.0-Beta19
        • 1.0.0-Beta18
        • 1.0.0-Beta17
        • 1.0.0-Beta16
        • 1.0.0-Beta15
        • 1.0.0-Beta14
        • 1.0.0-Beta13
        • 1.0.0-Beta12
        • 1.0.0-Beta11
        • 1.0.0-Beta10
        • 1.0.0-Beta9
        • 1.0.0-Beta8
        • 1.0.0-Beta7
        • 1.0.0-Beta6
        • 1.0.0-Beta5
        • 1.0.0-Beta 4
        • 1.0.0-Beta3
        • 1.0.0-Beta2
    • About This Book
      • Authors
  • Getting Started
    • Overview
      • Multi-Runtime
      • Instructions & Interpreters
      • CommandBox CLI
      • Quick Syntax Guide
        • Differences From CFML
      • Frequently Asked Questions
      • Running ColdFusion/CFML Apps
        • Migrating from Adobe ColdFusion
        • Migrating From Lucee CFML
    • Installation
      • Modules
    • Running BoxLang
      • AWS Lambda
      • CommandBox
      • Chromebooks
      • CLI Scripting
      • Docker
      • GitHub Actions
      • JSR-223 Scripting
      • MiniServer
      • Try BoxLang!
    • BoxLang Cloud Servers
      • Microsoft Azure
      • Amazon Web Services
    • IDE & Tooling
      • BoxLang Debugger
        • MiniServer Debugging
        • CommandBox Debugging
      • BoxLang Compiler
      • CFML Feature Audit
      • CFML to BoxLang Transpiler
    • Runtime Configuration
      • Directives
      • Caches
      • Datasources
      • Experimental
      • Executors
      • Logging
      • Maven Integration
      • Modules
      • Security
  • BoxLang Language
    • Program Structure
    • Syntax & Semantics
      • Comments
      • Variables
      • Variable Scopes
      • Operators
      • Null & Nothingness
      • Strings
      • Numbers
      • Dates & Times
      • JSON
      • Arrays
      • Structures
      • Queries
      • Datasources
      • Conditionals
      • Attempts
      • Data Navigators
      • Exception Management
      • Code Locking
      • Closures => Context Aware
      • Lambdas -> Pure Functions
      • Includes
      • Threading
    • Classes & O.O.
      • Properties
      • Functions
      • Static Constructs
      • Final Constructs
      • Abstract Constructs
      • Interfaces
    • Reference
      • API Docs
      • Lexical Elements
        • Scopes and Constants
        • Keywords
        • Operators
        • Literals
        • Comments
        • Tokens
        • Semicolons
        • Identifiers
        • Packages and Imports
        • Java Interoperability
        • Errors
      • Types
        • array
        • class
        • datetime
        • file
        • numeric
        • query
        • stream
        • string
        • struct
        • xml
      • Built-in Functions
        • array
          • ArrayAppend
          • ArrayAvg
          • ArrayClear
          • ArrayContains
          • ArrayContainsNoCase
          • ArrayDelete
          • ArrayDeleteAt
          • ArrayDeleteNoCase
          • ArrayEach
          • ArrayEvery
          • ArrayFilter
          • ArrayFind
          • ArrayFindAll
          • ArrayFindAllNoCase
          • ArrayFindNoCase
          • ArrayFirst
          • ArrayGetMetadata
          • ArrayIndexExists
          • ArrayInsertAt
          • ArrayIsDefined
          • ArrayLast
          • ArrayMap
          • ArrayMax
          • ArrayMedian
          • ArrayMerge
          • ArrayMid
          • ArrayMin
          • ArrayNew
          • ArrayPop
          • ArrayPrepend
          • ArrayPush
          • ArrayRange
          • ArrayReduce
          • ArrayReduceRight
          • ArrayResize
          • ArrayReverse
          • ArraySet
          • ArrayShift
          • ArraySlice
          • ArraySome
          • ArraySort
          • ArraySplice
          • ArraySum
          • ArraySwap
          • ArrayToList
          • ArrayToStruct
          • ArrayUnshift
        • async
          • ExecutorGet
          • ExecutorHas
          • ExecutorList
          • ExecutorNew
          • ExecutorShutdown
          • ExecutorStatus
          • FutureNew
          • IsInThread
          • isThreadAlive
          • IsThreadInterrupted
          • RunAsync
          • ThreadInterrupt
          • ThreadJoin
          • ThreadNew
          • ThreadTerminate
        • binary
          • BinaryDecode
          • BinaryEncode
          • BitAnd
          • BitMaskClear
          • BitMaskRead
          • BitMaskSet
          • BitNot
          • BitOr
          • bitShln
          • bitShrn
          • BitXor
        • cache
          • Cache
          • CacheFilter
          • CacheNames
          • CacheProviders
          • CacheService
        • cli
          • CLIClear
          • CLIExit
          • CLIGetArgs
          • CLIRead
        • conversion
          • DataNavigate
          • JSONDeserialize
          • JSONPrettify
          • JSONSerialize
          • LSParseNumber
          • ParseNumber
          • ToBase64
          • ToBinary
          • ToModifiable
          • ToNumeric
          • ToScript
          • ToString
          • ToUnmodifiable
        • decision
          • ArrayIsEmpty
          • arrayIsEmpty
          • Attempt
          • IsArray
          • IsBinary
          • IsBoolean
          • IsClosure
          • IsCustomFunction
          • IsDate
          • IsDateObject
          • IsDebugMode
          • IsDefined
          • IsEmpty
          • IsFileObject
          • IsIPv6
          • IsJSON
          • IsLeapYear
          • IsLocalHost
          • IsNull
          • IsNumeric
          • IsNumericDate
          • IsObject
          • IsQuery
          • IsSimpleValue
          • IsStruct
          • IsValid
          • IsXML
          • IsXmlAttribute
          • IsXMLDoc
          • IsXMLElem
          • IsXMLNode
          • IsXMLRoot
          • LSIsNumeric
          • structIsEmpty
        • encryption
          • Decrypt
          • DecryptBinary
          • Encrypt
          • EncryptBinary
          • GeneratePBKDFKey
          • GenerateSecretKey
          • Hash
          • Hash40
          • Hmac
        • format
          • BooleanFormat
          • DecimalFormat
          • LSNumberFormat
          • NumberFormat
        • i18n
          • ClearLocale
          • CurrencyFormat
          • GetLocale
          • GetLocaleDisplayName
          • GetLocaleInfo
          • IsCurrency
          • LSCurrencyFormat
          • LSIsCurrency
          • LSParseCurrency
          • ParseCurrency
          • SetLocale
        • io
          • ContractPath
          • CreateTempDirectory
          • CreateTempFile
          • DirectoryCopy
          • DirectoryCreate
          • DirectoryDelete
          • DirectoryExists
          • DirectoryList
          • DirectoryMove
          • DirectoryRename
          • ExpandPath
          • FileAppend
          • FileClose
          • FileCopy
          • FileDelete
          • FileExists
          • FileGetMimeType
          • FileInfo
          • FileIsEOF
          • FileMove
          • FileOpen
          • FileRead
          • FileReadBinary
          • FileReadLine
          • FileSeek
          • FileSetAccessMode
          • FileSetAttribute
          • FileSetLastModified
          • FileSkipBytes
          • FileWrite
          • FileWriteLine
          • GetCanonicalPath
          • GetDirectoryFromPath
          • GetFileInfo
          • getTempFile
        • java
          • CreateDynamicProxy
        • jdbc
          • IsInTransaction
          • IsWithinTransaction
          • PreserveSingleQuotes
          • QueryExecute
          • TransactionCommit
          • TransactionRollback
          • TransactionSetSavepoint
        • list
          • GetToken
          • ListAppend
          • ListAvg
          • ListChangeDelims
          • ListCompact
          • ListContains
          • ListContainsNoCase
          • ListDeleteAt
          • ListEach
          • ListEvery
          • ListFilter
          • ListFind
          • ListFindNoCase
          • ListFirst
          • ListGetAt
          • ListIndexExists
          • ListInsertAt
          • ListItemTrim
          • ListLast
          • ListLen
          • ListMap
          • ListPrepend
          • ListQualify
          • ListReduceRight
          • ListRemoveDuplicates
          • ListRest
          • ListSetAt
          • ListSome
          • ListSort
          • ListToArray
          • ListTrim
          • ListValueCount
          • ListValueCountNoCase
        • math
          • Abs
          • Acos
          • Asin
          • Atn
          • Ceiling
          • Cos
          • DecrementValue
          • Exp
          • Fix
          • Floor
          • FormatBaseN
          • IncrementValue
          • InputBaseN
          • Int
          • Log
          • Log10
          • Max
          • Min
          • Pi
          • PrecisionEvaluate
          • Rand
          • Randomize
          • RandRange
          • Round
          • Sgn
          • Sin
          • Sqr
          • Tan
        • query
          • QueryAddColumn
          • QueryAddRow
          • QueryAppend
          • QueryClear
          • QueryColumnArray
          • QueryColumnCount
          • QueryColumnData
          • QueryColumnExists
          • QueryColumnList
          • QueryCurrentRow
          • QueryDeleteColumn
          • QueryDeleteRow
          • QueryEach
          • QueryEvery
          • QueryFilter
          • QueryGetCell
          • QueryGetResult
          • QueryInsertAt
          • QueryKeyExists
          • QueryMap
          • QueryNew
          • QueryPrepend
          • QueryRecordCount
          • QueryReduce
          • QueryRegisterFunction
          • QueryReverse
          • QueryRowData
          • QueryRowSwap
          • QuerySetCell
          • QuerySetRow
          • QuerySlice
          • QuerySome
          • QuerySort
        • runtime
          • BoxLangBIFProxy
        • scheduler
          • SchedulerGet
          • SchedulerGetAll
          • SchedulerList
          • SchedulerRestart
          • SchedulerShutdown
          • SchedulerStart
          • SchedulerStats
        • string
          • Ascii
          • CamelCase
          • Char
          • CharsetDecode
          • CharsetEncode
          • Compare
          • CompareNoCase
          • Find
          • FindNoCase
          • FindOneOf
          • Insert
          • JSStringFormat
          • KebabCase
          • LCase
          • Left
          • ListReduce
          • LJustify
          • LTrim
          • Mid
          • ParagraphFormat
          • PascalCase
          • QueryStringToStruct
          • ReEscape
          • ReFind
          • reFindNoCase
          • ReMatch
          • reMatchNoCase
          • RemoveChars
          • RepeatString
          • Replace
          • ReplaceList
          • ReplaceListNoCase
          • ReplaceNoCase
          • ReReplace
          • reReplaceNoCase
          • Reverse
          • Right
          • RJustify
          • RTrim
          • Slugify
          • SnakeCase
          • SpanExcluding
          • SpanIncluding
          • SQLPrettify
          • StringBind
          • StringEach
          • StringEvery
          • StringFilter
          • StringMap
          • StringReduce
          • StringReduceRight
          • StringSome
          • StringSort
          • StripCR
          • Trim
          • TrueFalseFormat
          • UCase
          • UCFirst
          • Val
          • Wrap
          • YesNoFormat
        • struct
          • StructAppend
          • StructClear
          • StructCopy
          • StructDelete
          • StructEach
          • StructEquals
          • StructEvery
          • StructFilter
          • StructFind
          • StructFindKey
          • StructFindValue
          • StructGet
          • StructGetMetadata
          • StructInsert
          • StructIsCaseSensitive
          • StructIsOrdered
          • StructKeyArray
          • StructKeyExists
          • StructKeyList
          • StructKeyTranslate
          • StructMap
          • StructNew
          • StructReduce
          • StructSome
          • StructSort
          • StructToQueryString
          • StructToSorted
          • StructUpdate
          • StructValueArray
        • system
          • ApplicationRestart
          • ApplicationStartTime
          • ApplicationStop
          • BoxAnnounce
          • BoxAnnounceAsync
          • BoxModuleReload
          • BoxRegisterInterceptionPoints
          • BoxRegisterInterceptor
          • BoxRegisterRequestInterceptor
          • BoxUnregisterInterceptor
          • BoxUnregisterRequestInterceptor
          • CallStackGet
          • CreateGUID
          • CreateObject
          • CreateUUID
          • DE
          • DebugBoxContexts
          • Dump
          • Duplicate
          • echo
          • EncodeForHTML
          • GetApplicationMetadata
          • GetBaseTagData
          • GetBaseTagList
          • GetBaseTemplatePath
          • GetBoxContext
          • GetBoxRuntime
          • GetBoxVersionInfo
          • GetClassMetadata
          • GetComponentList
          • GetContextRoot
          • GetCurrentTemplatePath
          • GetFileFromPath
          • GetFunctionCalledName
          • GetFunctionList
          • GetModuleInfo
          • GetModuleList
          • GetRequestClassLoader
          • GetSemver
          • GetSystemSetting
          • GetTempDirectory
          • GetTickCount
          • htmlEditFormat
          • IIF
          • Invoke
          • IsInstanceOf
          • JavaCast
          • ObjectDeserialize
          • ObjectSerialize
          • PagePoolClear
          • Print
          • Println
          • RunThreadInContext
          • SessionInvalidate
          • SessionRotate
          • SessionStartTime
          • Sleep
          • SystemCacheClear
          • SystemExecute
          • SystemOutput
          • Throw
          • Trace
          • URLDecode
          • URLEncodedFormat
          • writeDump
          • WriteLog
          • WriteOutput
        • temporal
          • ClearTimezone
          • CreateDate
          • CreateDateTime
          • CreateODBCDate
          • CreateODBCDateTime
          • CreateODBCTime
          • CreateTime
          • CreateTimeSpan
          • DateAdd
          • DateCompare
          • DateConvert
          • DateDiff
          • DateFormat
          • DatePart
          • DateTimeFormat
          • Day
          • DayOfWeek
          • DayOfWeekAsString
          • DayOfWeekShortAsString
          • DayOfYear
          • DaysInMonth
          • DaysInYear
          • FirstDayOfMonth
          • GetNumericDate
          • GetTime
          • GetTimezone
          • GetTimezoneInfo
          • Hour
          • Millisecond
          • Minute
          • Month
          • MonthAsString
          • MonthShortAsString
          • Nanosecond
          • Now
          • Offset
          • ParseDateTime
          • Quarter
          • Second
          • SetTimezone
          • TimeFormat
          • Week
          • Year
        • type
          • ArrayLen
          • GetMetaData
          • Len
          • NullValue
          • StringLen
          • StructCount
        • xml
          • XMLChildPos
          • XMLElemNew
          • XMLFormat
          • XMLGetNodeType
          • XMLNew
          • XMLParse
          • XMLSearch
          • XMLTransform
          • XMLValidate
        • zip
          • Compress
          • Extract
          • IsZipFile
      • Components
        • async
          • Thread
        • cache
          • Cache
        • debug
          • Timer
        • io
          • Directory
          • File
        • jdbc
          • ProcParam
          • StoredProc
          • DBInfo
          • ProcResult
          • Query
          • QueryParam
          • Transaction
        • net
          • HTTPParam
          • HTTP
        • system
          • Throw
          • InvokeArgument
          • Application
          • Invoke
          • Abort
          • Include
          • Component
          • Execute
          • Flush
          • SaveContent
          • Output
          • Log
          • Sleep
          • Setting
          • Param
          • Lock
          • Associate
          • Silent
          • ProcessingDirective
          • Trace
          • Exit
          • Dump
          • Loop
        • xml
          • XML
        • zip
          • Zip
      • Exceptions
  • BoxLang Framework
    • Application.bx
    • Asynchronous Programming
    • Caching
      • Cache Service
      • BoxCache Provider
      • Custom Cache Providers
      • Custom Object Stores
      • Custom Eviction Policies
    • File Handling
    • Interceptors
      • Core Interception Points
        • Application Events
        • Cache Service Events
        • Cache Provider Events
        • Cache Object Store Events
        • Datasource Service Events
        • Dump Events
        • Dynamic Object Events
        • Function Invocations
        • HTTP Events
        • Life-cycle Events
        • Logging Events
        • Module Events
        • Module Service Events
        • Object Marshalling Events
        • Query Invocations
        • Runtime Events
        • Request Context Events
        • Scheduler Events
        • Scheduler Service Events
        • Template Invocations
        • Transaction Events
      • Request Interception Points
    • HTTP/S Calls
    • Java Interop
    • JDBC Transactions
    • Modules
      • AI
      • Compat CFML
        • Reference
          • Types
            • array
            • datetime
            • numeric
            • string
            • struct
          • Built-in Functions
            • cache
              • CacheCount
              • CacheGetAsAttempt
              • CacheRegionRemove
              • CacheRemoveAll
              • CachePut
              • CacheRegionExists
              • CacheGetSession
              • CacheGetEngineProperties
              • CacheGet
              • CacheGetDefaultCacheName
              • CacheGetProperties
              • CacheSetProperties
              • CacheGetAllIds
              • CacheIdExists
              • cacheKeyExists
              • CacheRemove
              • cacheDelete
              • CacheGetAll
              • CacheGetMetadata
              • CacheGetOrFail
              • CacheClear
              • CacheRegionNew
            • conversion
              • JSONDeserialize
            • encryption
              • Hash
              • Hash40
            • format
              • HTMLCodeFormat
              • DollarFormat
            • struct
              • DeleteClientVariable
            • system
              • Throw
              • ObjectSave
              • GetFunctionData
              • GetComponentMetadata
              • GetVariable
              • GetTagData
              • GetClientVariablesList
              • GetContextRoot
              • ObjectLoad
              • SetVariable
            • temporal
              • LSWeek
              • LSDayOfWeek
              • LSIsDate
              • DateCompare
              • GetHTTPTimestring
              • LSDateTimeFormat
              • LSDateFormat
              • LSTimeFormat
              • DayOfWeekAsString
              • DayOfWeekShortAsString
              • MonthAsString
              • MonthShortAsString
              • ToLegacyDate
              • createDate
              • LSParseDateTime
              • DateTimeFormat
              • DateFormat
              • TimeFormat
            • type
              • GetMetaData
          • Components
            • net
              • HTTP
      • CSRF
      • ESAPI
      • Evaluating Code
      • FTP
      • Image Manipulation
      • INI Files
      • JDBC
      • Jython
      • Mail
      • Markdown
      • ORM
      • OSHI - Operating System + Hardware
      • Password Encryption
      • PDF
      • Redis
      • UI Forms
      • WDDX
      • Web Support
      • Yaml
  • Extra Credit
    • MVC
    • Dependency Injection
Powered by GitBook
LogoLogo

Social Media

  • X
  • FaceBook
  • LinkedIn
  • YouTube

Bug Tracking

  • Runtimes
  • IDE
  • Modules

Support

  • Professional
  • Community
  • Slack

Copyright & Register Trademark by Ortus Solutions, Corp

On this page
  • Method Signature
  • Arguments
  • Examples
  • Simple listIndexExists
  • Additional Examples
  • Related

Was this helpful?

Edit on GitHub
Export as PDF
  1. BoxLang Language
  2. Reference
  3. Built-in Functions
  4. list

ListIndexExists

Checks if a list has a given index

Method Signature

ListIndexExists(list=[string], index=[integer], delimiter=[string], includeEmptyFields=[boolean])

Arguments

Argument
Type
Required
Description
Default

list

string

true

string list to check for an index

index

integer

true

numeric The index to check for

delimiter

string

false

string the list delimiter

,

includeEmptyFields

boolean

false

boolean whether to include empty fields in the returned result

false

Examples

Simple listIndexExists

Check whether the index is exists or not in list

<bx:set list = "Apple,Orange,Banana,Graphs" >
<bx:if listIndexExists( list, 2 ) >
	<bx:set list = listsetAt( list, 2, "Goa" ) >
</bx:if>
<bx:output>#list#</bx:output>

Result: Apple,Goa,Banana,Graphs

Additional Examples

// Simple Example
writeoutput( listIndexExists( "Susi,LAS,,boxlang,,,test", 3 ) );
// Member Function
strList = ",I,,love,boxlang,,";
writeDump( strList.listIndexExists( 6 ) );
 // Not exists, returns false

Related

PreviousListGetAtNextListInsertAt

Last updated 17 days ago

Was this helpful?

Run Example
ListSome
ListReduceRight
ListPrepend
ListFirst
ListLast
ListInsertAt
ListChangeDelims
ListFind
ListFindNoCase
ListContains
ListContainsNoCase
ListCompact
ListTrim
ListMap
ListDeleteAt
ListRemoveDuplicates
ListToArray
ListQualify
ListAppend
ListValueCount
ListValueCountNoCase
ListAvg
ListLen
ListRest
ListGetAt
ListEvery
ListEach
ListSort
ListSetAt
ListFilter
GetToken
ListItemTrim