JavaScript: Coerción y Tipos de Datos

Quiz
•
Computers
•
1st - 10th Grade
•
Medium
Marcos G
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
¿Cuál de las siguientes formas es la correcta para declarar y asignar un valor a una variable?
var = 70
var numero 70 = 70
var numero = 70
numero = 70
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
¿Cuáles son tipos de dato primitivos en JavaScript?
- string
- number
- boolean
- undefined
- null
- number
- objeto
- arrays
- boolean
- string
- arrays
- objeto
- number
- null
- funciones
- objeto
- arrays
- null
- boolean
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Un tipo de dato string...
Representa un número puro
Representa una cadena de texto
Representa una función
Representa un booleano
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Un tipo de dato number...
Representa un arreglo de números
Representa una cadena de texto con números adentro
Representa un número puro, ya sea decimal o entero
Representa un valor de tipo true o false
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Un tipo de dato boolean...
Representa un tipo de dato indefinido
Representa un objeto
Representa una función
Representa un booleano, es decir true o false
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
¿Cuál de los siguientes es el tipo de dato que nos dice que la variable existe pero aún no tiene valor?
null
NaN
undefined
0 (cero)
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
¿Cuál de las siguientes listas es la correcta para tipos de operadores?
operadores de comparación: + - * / % ++ -- ;
operadores lógicos: > >= < <= == != ;
operadores aritméticos: || && ! ;
operadores aritméticos: + - * / % ++ -- ;
operadores de comparación: > >= < <= == != ;
operadores lógicos: || && ! ;
operadores lógicos: + - * / % ++ -- ;
operadores aritméticos: > >= < <= == != ;
operadores de comparación: || && ! ;
operadores aritméticos: + - * / % ++ -- ;
operadores lógicos: > >= < <= == != ;
operadores de comparación: || && ! ;
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