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[ string->isalnum ]

Method

[String->IsAlnum] checks whether a specified character within the string object is alphanumeric. If the parameter specifying the position of the character to be examined is omitted, then the default position 1 (or first character in the string object) is examined. The method returns True if the examined character is alphanumeric or False otherwise.

  • Syntax
'String Object'->isalnum
'String Object'->isalnum(integer)
Examples
  • Beginner

To check whether a character is alphanumeric:

Use the [String->IsAlnum] method. The following example returns False since the sixth character of the string is not alphanumeric, but a space.

Code

'Lasso 9'->isalnum(6)

Result

false
Related Entries
  • Category
Methods
encode_break 
string->append 
string->asBytes 
string->asString 
string->beginsWith 
string->chardigitvalue 
string->charname 
string->chartype 
string->compare 
string->contains 
string->decodehtml 
string->decodexml 
string->digit 
string->eachCharacter 
string->eachMatch 
string->eachWordBreak 
string->encodehtml 
string->encodehtmltoxml 
string->encodeSQL 
string->encodeSQL92 
string->encodexml 
string->endsWith 
string->equals 
string->find 
string->findlast 
string->foldcase 
string->forEachCharacter 
string->forEachLineBreak 
string->forEachMatch 
string->forEachWordBreak 
string->get 
string->getnumericvalue 
string->getpropertyvalue 
string->hasbinaryproperty 
string->integer 
string->isalnum 
string->isalpha 
string->isbase 
string->isblank 
string->iscntrl 
string->isdigit 
string->isgraph 
string->islower 
string->isprint 
string->ispunct 
string->isspace 
string->istitle 
string->isUAlphabetic 
string->isULowercase 
string->isupper 
string->isUUppercase 
string->isUWhiteSpace 
string->isWhitespace 
string->isxdigit 
string->keys 
string->length 
string->lowercase 
string->merge 
string->normalize 
string->oncompare 
string->padLeading 
string->padTrailing 
string->remove 
string->removeleading 
string->removetrailing 
string->replace 
string->reverse 
string->size 
string->split 
string->sub 
string->substring 
string->titlecase 
string->tolower 
string->totitle 
string->toupper 
string->trim 
string->unescape 
string->uppercase 
string->values 
String_Concatenate 
String_EndsWith 
String_Extract 
String_FindPosition 
string_findregexp 
String_Insert 
String_IsAlpha 
String_IsAlphaNumeric 
String_IsDigit 
String_IsHexdigit 
String_IsLower 
string_IsNumeric 
String_IsPunctuation 
String_IsSpace 
String_IsUpper 
String_Length 
String_LowerCase 
String_Remove 
String_RemoveLeading 
String_RemoveTrailing 
string_replace 
String_ReplaceRegExp 
String_ToDecimal 
String_ToInteger 
String_UpperCase 
String_ValidCharset
Types
string

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