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$isalphanumeric
Tests if a character string contains only letters and digits.
Syntax
$isalphanumeric(string)Parameters
| string | a character string or an expression that evaluates to a character string |
Return Value
1-character binary string. Evaluates to 1 ($True) if string meets the validation test; otherwise, evaluates to 0 ($False).
Comments
This function tests if a particular character string is alphanumeric.
Example
$isalphanumeric("abc1")Evaluates to $True.
$isalphanumeric("abc ")Evaluates to $False.
English 
Portuguese
Inserted the $trim function
Corrected duplicate title.
Colocar o $trim para o caso de variáveis onde brancos possam aparecer no final.
Remover titulos duplicados