
Métodos String, Classlist, Visibility
Quiz
•
Engineering
•
University
•
Practice Problem
•
Easy
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. ¿Cómo se define un string en JavaScript?
Dentro de comillas dobles ("")
Dentro de paréntesis ()
Dentro de corchetes []
Dentro de llaves {}
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. ¿Qué método devuelve la longitud de un string en JavaScript?
size()
length()
getLength()
count()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. ¿Cuál es la función de toUpperCase() en un string?
Convierte el texto a minúsculas
Invierte el texto
Convierte el texto a mayúsculas
Devuelve la longitud del string
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. ¿Qué método busca la primera aparición de una subcadena en un string?
lastIndexOf()
find()
indexOf()
search()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. ¿Cuál de los siguientes métodos reemplaza todas las ocurrencias de una subcadena en un string?
replace()
replaceAll()
replaceEvery()
replaceOne()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. ¿Qué devuelve el método startsWith() cuando un string comienza con los caracteres especificados?
Un número
Un string vacío
true o false
La longitud del string
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. ¿Qué hace el método includes() en un string?
Verifica si el string contiene una subcadena específica
Reemplaza una subcadena en el string
Convierte el string en un array
Invierte el string
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