Example Void isType 010

 

 

Description

The isType function is used to check if the argument object is of the correct type. If it is, the function returns true, otherwise, it returns false.

 

Details

An uninitialized variable has the value #void.

(isType Void: X) Returns: true

An Integer is not of type Void.

(setq a 1) Returns: 1
(isType Void: a) Returns: false

 

Related Examples

Here are examples of the isType function at work.

BitVector isType 020 Boolean isType 011 Character isType 012 Date isType 014
Dictionary isType 006 Directory isType 007 FltVector isType 016 Function isType 015
IntVector isType 017 Matrix isType 009 NumMatrix isType 022 NumVector isType 018
Number isType 013 ObjVector isType 019 ObjectRepository isType 022 Pair isType 021
ShortVector isType 018 String isType 001 String isType 002 String isType 003
Structure isType 005 Symbol isType 004 Vector isType 008 Void isType 010

 

Function Links

Here is the link to the current function used in this example.

isType

Here are a number of links to other related functions.

isObject(#void)

 

Argument Types

Here are the links to the data types of the arguments used in this example.

Void Boolean String

Here are a number of links to examples having similar argument types.

BitVector compareEQ 014 BitVector compareGE 014 BitVector compareGT 014 BitVector compareLE 014
BitVector compareLT 014 BitVector compareNE 014 BitVector comparison 014 BitVector inside 007
BitVector isAtom 010 BitVector isEqual 017 BitVector isIdentical 017 BitVector isObject 012
BitVector isType 020 BitVector member 008 BitVector ref 027 BitVector sort 017
Boolean addMethod 011 Boolean addMethod 012 Boolean bcompareEQ 001 Boolean bcompareGE 001
Boolean bcompareGT 001 Boolean bcompareLE 001 Boolean bcompareLT 001 Boolean bcompareNE 001
Boolean boolean 001 Boolean compare 009 Boolean compareEQ 009 Boolean compareGE 009
Boolean compareGT 009 Boolean compareLE 009 Boolean compareLT 009 Boolean compareNE 009
Boolean comparison functions 009 Boolean isBoolean 001 Boolean isEqual 007 Boolean isIdentical 007
Boolean isType 011 Boolean methodsOf 012 Boolean ref 018 Boolean setq 016
Boolean sizeof 009 Boolean type 011 ByteVector isCharAlphabetic 003 ByteVector isCharAlphanumeric 003
ByteVector isCharLowercase 003 ByteVector isCharName 003 ByteVector isCharNumeric 003 ByteVector isCharUppercase 003
ByteVector isCharWhitespace 003 ByteVector isObject 013 Character ccompareEQ 001 Character ccompareGE 001
Character ccompareGT 001 Character ccompareLE 001 Character ccompareLT 001 Character ccompareNE 001
Character compare 010 Character isCharacter 001 Character isType 012 Complex compare 021
Complex isComplex 001 Context clear 001 Context debug 001 Context debugBrowsableProcs 001
Context disassemble 001 Date compare 012 Date hour 001 Date isDate 001
Date isType 014 Date julian 001 Date minute 001 Date month 001
Date second 001 Date time 001 Date time 002 Date year 001
Dictionary compareEQ 004 Dictionary compareGE 004 Dictionary compareGT 004 Dictionary compareLE 004
Dictionary compareLT 004 Dictionary compareNE 004 Dictionary comparison functions 004 Dictionary isAtom 002
Dictionary isBound 002 Dictionary isDictionary 001 Dictionary isEqual 002 Dictionary isIdentical 002
Dictionary isInside 002 Dictionary isMember 002 Dictionary isObject 004 Dictionary isType 006
Dictionary new 004 Directory compareEQ 005 Directory compareGE 005 Directory compareGT 005
Directory compareLE 005 Directory compareLT 005 Directory compareNE 005 Directory comparison functions 005
Directory isAtom 003 Directory isBound 003 Directory isDirectory 001 Directory isEqual 003
Directory isIdentical 003 Directory isObject 005 Directory isType 007 Directory member 002
Directory member 003 Directory new 005 Directory ref 010 Directory ref 012
Directory sort 008 Directory sort 009 Error error 001 Error errorTrap 001
Error isError 001 Error isIdentical 007 Error onError 001 FileIO closeLog 001
FltVector binarySearch 005 FltVector compareEQ 014 FltVector compareGE 014 FltVector compareGT 014
FltVector compareLE 014 FltVector compareLT 014 FltVector compareNE 014 FltVector comparison functions 014
FltVector isAtom 005 FltVector isEqual 013 FltVector isIdentical 012 FltVector isObject 007
FltVector isType 016 FltVector ref 022 FltVector sort 013 Function compare 013
Function isType 015 IntVector binarySearch 006 IntVector compareEQ 014 IntVector compareGE 014
IntVector compareGT 014 IntVector compareLE 014 IntVector compareLT 014 IntVector compareNE 014
IntVector comparison functions 014 IntVector inside 005 IntVector isAtom 006 IntVector isEqual 014
IntVector isIdentical 013 IntVector isObject 008 IntVector isType 017 IntVector member 005
IntVector ref 023 IntVector sort 014 Integer icompareGE 001 Integer icompareGT 001
Integer icompareLE 001 Integer icompareLT 001 Integer icompareNE 001 Lambda balance 001
Lambda compare 008 Lambda compareEQ 008 Lambda compareGE 008 Lambda compareGT 008
Lambda compareLE 008 Lambda compareLT 008 Lambda compareNE 004 Lambda compile 001
Lambda debug 001 Lambda debugBrowsableProcs 001 Lambda defchild 001 Lambda define 001
Lambda deforphan 001 Lambda defriend 001 Lambda defun 001 Lambda defun 002
Lambda disassemble 001 Lambda onError 001 Lambda ref 017 List compare 020
List compareEQ 020 List compareGE 020 List compareGT 020 List compareLE 020
List compareLT 020 List compareNE 020 List comparison 020 List isObject 015
Matrix binarySearch 005 Matrix binarySearch 006 Matrix compareEQ 007 Matrix compareGE 007
Matrix compareGT 007 Matrix compareLE 007 Matrix compareLT 007 Matrix compareNE 007
Matrix comparison functions 007 Matrix inside 005 Matrix isAtom 005 Matrix isEqual 005
Matrix isIdentical 005 Matrix isObject 007 Matrix isType 009 Matrix member 005
Matrix ref 015 Matrix ref 016 NumMatrix binarySearch 007 NumMatrix compareEQ 023
NumMatrix compareGE 023 NumMatrix compareGT 023 NumMatrix compareLE 023 NumMatrix compareLT 023
NumMatrix compareNE 023 NumMatrix comparison functions 023 NumMatrix inside 009 NumMatrix isAtom 012
NumMatrix isEqual 020 NumMatrix isIdentical 020 NumMatrix isObject 014 NumMatrix isType 022
NumMatrix member 009 NumMatrix ref 035 NumVector binarySearch 007 NumVector compareEQ 014
NumVector compareGE 014 NumVector compareGT 014 NumVector compareLE 014 NumVector compareLT 014
NumVector compareNE 014 NumVector comparison 014 NumVector inside 006 NumVector isAtom 007
NumVector isEqual 015 NumVector isIdentical 014 NumVector isObject 009 NumVector isType 018
NumVector member 006 NumVector ref 024 NumVector sort 015 Number compare 011
Number isType 013 Number nadd 001 Number ncompareGE 001 Number ncompareGT 001
Number ncompareLE 001 Number ncompareLT 001 Number ndiv 001 Number nmod 001
Number nmul 001 Number nsub 001 ObjVector compareEQ 014 ObjVector compareGE 014
ObjVector compareGT 014 ObjVector compareLE 014 ObjVector compareLT 014 ObjVector compareNE 014
ObjVector comparison functions 014 ObjVector isAtom 008 ObjVector isEqual 016 ObjVector isIdentical 015
ObjVector isObject 010 ObjVector isType 019 ObjVector member 007 ObjVector ref 025
ObjVector sort 016 ObjectRepository clear 002 ObjectRepository compare 021 ObjectRepository compare 022
ObjectRepository compareEQ 021 ObjectRepository compareEQ 022 ObjectRepository compareGE 021 ObjectRepository compareGE 022
ObjectRepository compareGT 021 ObjectRepository compareGT 022 ObjectRepository compareLE 021 ObjectRepository compareLE 022
ObjectRepository compareLT 021 ObjectRepository compareLT 022 ObjectRepository compareNE 021 ObjectRepository compareNE 022
ObjectRepository comparison 021 ObjectRepository comparison 022 ObjectRepository isIdentical 019 ObjectRepository isImmediate 001
ObjectRepository saveImmediate 001 Pair isObject 014 PcodeVector isAtom 009 PcodeVector isIdentical 016
PcodeVector isObject 011 PcodeVector ref 026 ShortVector binarySearch 007 ShortVector compareEQ 015
ShortVector compareGE 015 ShortVector compareGT 015 ShortVector compareLE 015 ShortVector compareLT 015
ShortVector compareNE 015 ShortVector comparison functions 015 ShortVector inside 006 ShortVector isAtom 007
ShortVector isEqual 015 ShortVector isIdentical 014 ShortVector isObject 009 ShortVector isType 018
ShortVector member 006 ShortVector ref 024 ShortVector sort 015 String addMethod 001
String append 001 String append 002 String clean 001 String code 001
String compare 001 String compareEQ 001 String compareGE 001 String compareGT 001
String compareLE 001 String compareLT 001 String compareNE 001 String comparison functions 001
String defMethod 001 String defMethod 002 String downcase 001 String fileRead 001
String fileRead 002 String fileReadRecord 001 String fileWrite 001 String find 001
String find 002 String hashString 001 String isChar 001 String isCharAlphabetic 001
String isCharAlphanumeric 001 String isCharLowercase 001 String isCharName 001 String isCharNumeric 001
String isCharUppercase 001 String isCharWhitespace 001 String isEqual 001 String isEqual 002
String isObject 001 String isString 001 String isText 001 String isType 001
String isType 002 String isType 003 String left 001 String length 001
String length 002 String methodsOf 001 String methodsOf 002 String methodsOf 003
String mid 001 String new 001 String parse 001 String ref 001
String ref 002 String replace 001 String rept 001 String right 001
String send 001 String sizeof 001 String string 001 String string 002
String string 003 String stringCiEQ 001 String stringCiGE 001 String stringCiGT 001
String stringCiLE 001 String stringCiLT 001 String stringCiNE 001 String stringFill 001
String stringToBVector 001 String stringToBVector 002 String stringToBVector 003 String stringToVector 001
String stringToVector 002 String stringToVector 003 String stringToVector 004 String substitute 001
String substitute 002 String substring 001 String substring 002 String substringCiEQ 001
String substringCiGE 001 String substringCiGT 001 String substringCiLE 001 String substringCiLT 001
String substringCiNE 001 String text 001 String trim 001 String type 001
String upcase 001 String upcase 002 String upcase 003 Structure apply 002
Structure binarySearch 001 Structure compareEQ 003 Structure comparison functions 003 Structure defstruct 001
Structure defstruct 002 Structure isAtom 001 Structure isBound 001 Structure isEqual 001
Structure isIdentical 001 Structure isInside 001 Structure isMember 001 Structure isObject 003
Structure isStructure 001 Structure isType 005 Structure member 001 Structure ref 004
Structure setq 003 Structure setq 004 Structure setq 005 Structure setq 006
Symbol *< 001 Symbol +< 001 Symbol -< 001 Symbol /< 001
Symbol comparison functions 002 Symbol isCharAlphabetic 002 Symbol isCharAlphanumeric 002 Symbol isCharLowercase 002
Symbol isCharName 002 Symbol isCharNumeric 002 Symbol isCharUppercase 002 Symbol isCharWhitespace 002
Symbol isObject 002 Symbol isSymbol 001 Symbol isType 004 Symbol length 003
Symbol makeQuotedSymbol 001 Symbol send 002 Symbol sizeof 002 Symbol symbol 001
Symbol symbol 002 Symbol type 002 Vector binarySearch 003 Vector binarySearch 004
Vector compareEQ 006 Vector compareGE 006 Vector compareGT 006 Vector compareLE 006
Vector compareLT 006 Vector compareNE 006 Vector comparison functions 006 Vector inside 004
Vector isAtom 004 Vector isEqual 004 Vector isIdentical 004 Vector isObject 006
Vector isType 008 Vector member 004 Vector ref 013 Vector ref 014
Vector sort 011 Void addMethod 009 Void addMethod 010 Void compareEQ 008
Void compareGE 008 Void compareGT 008 Void compareLE 008 Void compareLT 008
Void compareNE 008 Void comparison functions 008 Void defmethod 010 Void defmethod 011
Void isEqual 006 Void isIdentical 006 Void isNull 001 Void isType 010
Void methodsOf 011 Void ref 017 Void send 009 Void setq 015
Void sizeof 008 Void type 011 substringEQ 001 substringFill 001
substringGE 001 substringGT 001 substringLE 001 substringLT 001
substringNE 001

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