2TDS - Programação Frontend
Quiz
•
Information Technology (IT)
•
11th Grade
•
Practice Problem
•
Medium
JOAO MONTEIRO
Used 1+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções abaixo representa corretamente a declaração de uma variável em JavaScript?
varidade x = 10;
let x = 10;
inteiro x = 10;
variable x = 10;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual estrutura é utilizada para executar diferentes blocos de código dependendo de uma condição em JavaScript?
for
switch
if...else
while
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções abaixo é um exemplo correto de laço de repetição que percorre um array em JavaScript?
for(let i = 0; i < array.length; i++) { }
while(i < array.length) { }
if(array.length > 0) { }
switch(array.length) { }
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se adiciona um elemento ao final de um array chamado `lista` em JavaScript?
lista.add("novo");
lista.push("novo");
lista.insert("novo");
lista.append("novo");
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das alternativas representa corretamente uma função em JavaScript que retorna a soma de dois números?
function soma(a, b) { return a + b; }
soma(a, b) = a + b;
function soma(a, b) { a + b; }
soma(a, b) { return a + b; }
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual evento JavaScript é disparado quando um usuário clica em um elemento HTML?
onmouseover
onchange
onclick
onload
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções abaixo verifica se o valor de uma variável `idade` é maior ou igual a 18?
if(idade = 18) { }
if(idade > 18) { }
if(idade >= 18) { }
if(idade < 18) { }
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