isDigit()

[Characters]

Description

Analyse if a char is a digit (that is a number). Returns true if thisChar is a number.

Syntax

isDigit(thisChar)

Parameters

thisChar: variable. Allowed data types: char

Returns

true: if thisChar is a number.

Example Code

if (isDigit(this))      // tests if this is a digit
{
	Serial.println("The character is a number");
}
else
{
	Serial.println("The character is not a number");
}

See also