String.startsWith()

Descrição

Testa se uma String começa ou não com os caracteres de uma outra String.

Sintaxe

minhaString.startsWith(minhaString2)

Parâmetros

  • minhaString, minhaString2: variáveis do tipo String

Retorna

  • true: se minhaString começa com os carcateres de minhaString2
  • false: do contrário

Código de Exemplo

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:

COM6
Send
The string is started with Arduino
Autoscroll Show timestamp
Clear output
9600 baud  
Newline  

※ Notas e Advertências:

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

Ver Também

Exemplo : Tutoriais String (Em Inglês)

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