
Introdução ao JavaScript para Iniciantes
Authored by DENIS FERREIRA
Computers
9th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos seguintes não é um tipo de dado primitivo em JavaScript?
String
Number
Boolean
Array
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de `typeof null` em JavaScript?
"null"
"object"
"undefined"
"boolean"
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual estrutura de controle é usada para executar um bloco de código várias vezes?
if
switch
for
try
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a sintaxe correta para declarar uma função em JavaScript?
function: minhaFuncao() {}
function minhaFuncao() {}
func minhaFuncao() {}
def minhaFuncao() {}
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual evento é acionado quando um usuário clica em um elemento HTML?
onmouseover
onclick
onkeydown
onload
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor de `x` após a execução do seguinte código: `let x = 5; x += 3;`?
5
8
3
15
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a saída do seguinte código: `console.log(typeof NaN);`?
"number"
"NaN"
"undefined"
"object"
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