
JavaScript Fundamentals
Authored by Education AIT
Computers
1st - 3rd Grade
Used 41+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typeof NaN? NaN = Not a number
A string
A boolean
A number
Undefined
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué nos da la siguiente ecuación? ! + [] + !![]
undefined
false
true
2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se invoca la función "myFunction"?
call function myFunction()
function myFunction()
myFunction()
call myFunction()
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En JavaScript, el operador para concatenar strings es...
%
+
.
-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Con qué código enviamos información a la consola?
console.append()
console.log()
echo " ";
console.print()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En JavaScript, ¿cómo se genera un número aleatorio?
Math.rnd()
Math.round()
Math.random()
Ninguna de las respuestas es correcta
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la instrucción usada para devolver un valor en una función de JavaScript?
Send
Return
Value
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