Se liga 3º trimestre 1º ano
Quiz
•
Information Technology (IT)
•
10th Grade
•
Practice Problem
•
Hard
Used 1+ times
FREE Resource
Enhance your content in a minute
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como declarar uma variável em JavaScript?
a. var nome;
b. declare nome;
c. variável nome;
d. let varNome;
e. new var nome;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de console.log(5 + "5");?
a. 10
b. 55
c. undefined
d. erro de sintaxe
e. null
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual estrutura é usada para executar um bloco de código várias vezes?
a. if...else
b. for
c. while
d. switch
e. b e c estão corretas
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual destes comandos exibe um alerta na tela em JavaScript?
a. console.alert()
b. display()
c. show("Mensagem");
d. alert("Mensagem");
e. popup("Mensagem");
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função de document.getElementById("id") no JavaScript?
a. Obter o valor de uma variável.
b. Selecionar um elemento HTML pelo seu ID.
c. Criar um novo elemento HTML.
d. Redirecionar para outra página.
e. Declarar uma nova variável com o nome do ID.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você declara uma variável em JavaScript?
a. var minhaVariavel;
b. let minhaVariavel;
c. const minhaVariavel;
d. Todas as alternativas acima estão corretas.
e. Nenhuma das anteriores.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de console.log(typeof null);?
a. "object"
b. "null"
c. "undefined"
d. "string"
e. "boolean"
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