
Javascript
Quiz
•
Instructional Technology
•
2nd Grade
•
Practice Problem
•
Medium
Deividi Henrique
Used 1+ times
FREE Resource
Enhance your content in a minute
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a maneira correta de declarar uma variável em JavaScript?
var myVariable;
variable myVariable;
let #myVariable;
const 2myVariable;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a sintaxe correta para um loop for em JavaScript?
for (i = 0; i < 5; i++) {}
for (i < 5; i++) {}
for (i = 0; i++) {}
for (i = 0; i < 5) {}
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual é a saída do seguinte código?
0
1
2
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a diferença entre while e do...while loops?
while executa o bloco de código pelo menos uma vez, do...while pode não executar nenhuma vez
do...while executa o bloco de código pelo menos uma vez, while pode não executar nenhuma vez
Ambos são iguais
while é mais rápido que do...while
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Como você acessa a propriedade name do objeto person?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual é a saída do seguinte código?
undefined
null
2
3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a maneira correta de declarar uma constante em JavaScript?
var myConstant = 10;
const myConstant;
const myConstant = 10;
let myConstant = 10;
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