Description
Analyse if a char is alpha (that is a letter). Returns true if thisChar contains a letter.
Syntax
isAlpha(thisChar)Parameters
thisChar: variable. Allowed data types: char
Returns
true: if thisChar is alpha.
Analyse if a char is alpha (that is a letter). Returns true if thisChar contains a letter.
isAlpha(thisChar)thisChar: variable. Allowed data types: char
true: if thisChar is alpha.
if (isAlpha(this)) // tests if this is a letter
{
Serial.println("The character is a letter");
}
else
{
Serial.println("The character is not a letter");
}LANGUAGE char
LANGUAGE if (conditional operators)
LANGUAGE while (conditional operators)
LANGUAGE read()
Corrections, suggestions, and new documentation are very welcomed. They can be contributed to the energia website repository on Github.
The text of the Energia getting started and reference guides are licensed under a Creative Commons Attribution-ShareAlike 3.0 License. The Energia reference is based on the Wiring/Arduino reference. Code samples in the guide are released into the public domain.
Energia sketches are C/C++ based and compiled with the open-source compiler MSPGCC or arm-gcc-none-eabi. The Energia language comes from Wiring. The Energia environment is based on Processing and includes modifications made by Wiring and Arduino.
©Energia