Characters
- isAlpha()
- isAlphaNumberic()
- isAscii()
- isControl()
- isDigit()
- isGraph()
- isHexadecimalDigit()
- isLowerCase()
- isPrintable()
- isPunct()
- isSpace()
- isUpperCase()
- isWhitespace()
专题
ArduinoisAlphaNumeric()
Analyse if a char is alphanumeric (that is a letter or a numbers). Returns true if thisChar contains either a number or a letter.
Syntax
isAlphaNumeric(thisChar)
Parameters
thisChar: variable. Allowed data types: char.
Returns
true: if thisChar is alphanumeric.
Example Code
if (isAlphaNumeric(myChar)) { // tests if myChar isa letter or a number
Serial.println("The character is alphanumeric");
}
else {
Serial.println("The character is not alphanumeric");
}
