String.toUpperCase()

Description

Renvoie une chaîne en majuscules de la chaîne d'un objet String. (Ne modifie pas l'objet String qui est utilisé.)

Syntaxe

string.toUpperCase()

Paramètres

Valeurs Renvoyées

  • Renvoie une chaîne en majuscules de la chaîne de l'objet string

Exemple

String myString; void setup() { Serial.begin(9600); myString = "ArduinoGetStarted.com"; Serial.println(myString); // string before myString.toUpperCase(); 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  

※ Remarque:

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

ARDUINO BUY RECOMMENDATION

Arduino UNO R3
Arduino Starter Kit
Please note: These are affiliate links. If you buy the components through these links, We may get a commission at no extra cost to you. We appreciate it.

※ OUR MESSAGES

  • We are AVAILABLE for HIRE. See how to hire us to build your project
  • Any suggestion, correction, and translation? please email us at ArduinoGetStarted@gmail.com, We appreciate it
  • We mainly keep improving the references in English. See English version of this page for the latest update.