
QCM – Méthodes de chaînes en JavaScript
Quiz
•
Information Technology (IT)
•
12th Grade
•
Medium
Hajar Hardi
Used 2+ times
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode retourne la longueur d'une chaîne ?
length()
size()
length
count()
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode retourne une partie d’une chaîne en utilisant deux indices (début et fin) ?
substring()
substr()
slice()
trim()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode accepte un index de départ et une longueur ?
substring()
slice()
substr()
trim()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode convertit tout le texte en majuscules ?
toUpper()
toUpperCase()
uppercase()
makeUpper()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode convertit tout le texte en minuscules ?
toLower()
lowercase()
toLowerCase()
makeLower()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode retourne un caractère à une position donnée ?
get()
charAt()
character()
getChar()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle méthode retourne le code UTF-16 d’un caractère ?
charCodeAt()
getCode()
unicodeAt()
codePoint()
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