isSpace()
Description
Check if a character is a white-space character or not. Returns true if the character is :
- A space (' ')
- Form feed ('\f')
- Newline ('\n')
- Carriage return ('\r')
- Horizontal tab ('\t')
- Vertical tab ('\v').
Syntax
isSpace(thisChar)
Parameter Values
- thisChar: variable. Allowed data types: char.
Return Values
- true: If thisChar is a white-space character.
- false: Otherwise
Example Code
char myChar;
void setup() {
Serial.begin(9600);
// myChar = ' ';
// myChar = '\f';
// myChar = '\n';
// myChar = '\r';
myChar = '\t';
// myChar = '\v';
Serial.print(myChar);
Serial.print(": ");
if (isSpace(myChar)) // tests if myChar is a white-space character
Serial.println("The character is white-space");
else
Serial.println("The character is not white-space");
myChar = 'A';
Serial.print(myChar);
Serial.print(": ");
if (isSpace(myChar)) // tests if myChar is a white-space character
Serial.println("The character is white-space");
else
Serial.println("The character is not white-space");
}
void loop() {}
The result in Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
: The character is white-space
A: The character is not white-space
See Also
- Language : isAlpha()
- Language : isAlphaNumeric()
- Language : isAscii()
- Language : isControl()
- Language : isDigit()
- Language : isGraph()
- Language : isHexadecimalDigit()
- Language : isLowerCase()
- Language : isPrintable()
- Language : isPunct()
- Language : isUpperCase()
- Language : isWhitespace()
- Language : char
- Language : if (conditional operators)
- Language : while (conditional operators)
- Language : read()
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