
Sintaxis de JavaScript (parte 1)
Authored by Coachs Desarrollo
Computers
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la forma correcta de declarar una variable en JavaScript?
variable x;
let x;
var x == 10;
new variable x;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes NO es un tipo de dato en JavaScript?
Number
String
Boolean
Character
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué método usamos para mostrar mensajes en la consola?
console.log()
console.write()
print.console()
log.console()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el método que muestra un mensaje emergente en el navegador?
window.prompt()
window.confirm()
window.alert()
console.error()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función devuelve un valor ingresado por el usuario en una ventana emergente?
prompt()
alert()
confirm()
log()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de dato devuelve el método window.confirm()?
String
Number
Boolean
Array
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la estructura correcta de una sentencia condicional if en JavaScript?
if x > 10 then {...}
if (x > 10) {...}
if x > 10 {...}
if x > 10 : {...}
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