String.startsWith()

Description

Teste si un objet String commence avec les caractères d'un autre objet String.

Syntaxe

string.startsWith(string2)

Paramètres

  • string: une variable de type String()
  • string2: une autre variable de type String()

Valeurs Renvoyées

  • true: si l'objet string commence par les caractères de l'objet string2
  • false: dans le cas contraire

Exemple

void setup() { Serial.begin(9600); String myString = "ArduinoGetStarted.com"; String myString2 = "Arduino"; if (myString.startsWith(myString2)) Serial.println("The string is started with Arduino"); else Serial.println("The string is NOT started with Arduino"); } void loop() { }

The result on Serial Monitor:

Newbiely | Arduino IDE 2.3.8
──
File
Edit
Sketch
Tools
Help
Arduino Uno
Newbiely.ino
···
8 Serial.println("Hello World!");
Output
Serial Monitor
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
The string is started with Arduino
Ln 11, Col 1
Arduino Uno on COM15
2

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