String.startsWith()
Description
Teste si un objet String commence avec les caractères d'un autre objet String.
Syntaxe
string.startsWith(string2)
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:
COM6
The string is started with Arduino
Autoscroll
Clear output
9600 baud Â
Newline Â
※ Remarque:
If the string is modified, it is highly recommended using String.reserve() to prevent the memory fragmentation issue
Voir Également
- Langage: Arduino - String
- Langage: String.charAt()
- Langage: String.compareTo()
- Langage: String.concat()
- Langage: String.endsWith()
- Langage: String.equals()
- Langage: String.equalsIgnoreCase()
- Langage: String.getBytes()
- Langage: String.indexOf()
- Langage: String.lastIndexOf()
- Langage: String.length()
- Langage: String.replace()
- Langage: String.setCharAt()
- Langage: String.substring()
- Langage: String.toCharArray()
- Langage: String.toLowerCase()
- Langage: String.toUpperCase()
- Langage: String.trim()
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