String.toLowerCase()

Description

Get a lower-case version of a String. As of 1.0, toLowerCase() modifies the String in place rather than returning a new one.

Syntax

myString.toLowerCase()

Parameter Values

  • myString: a variable of type String.

Return Values

  • Nothing

Example Code

String myString; void setup() { Serial.begin(9600); myString = "ARDUINOGETSTARTED.COM"; Serial.println(myString); // string before myString.toLowerCase(); Serial.println(myString); // string after } void loop() { }

The result on Serial Monitor:

COM6
Send
ARDUINOGETSTARTED.COM arduinogetstarted.com
Autoscroll Show timestamp
Clear output
9600 baud  
Newline  

※ NOTES AND WARNINGS:

If the string is modified, it is highly recommended using String.reserve() to prevent the memory fragmentation issue

See Also

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Arduino UNO R3
Arduino Starter Kit
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