
Desenvolvimento de software - intermediário
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Hard
Luara Rangel
Used 1+ times
FREE Resource
Enhance your content in a minute
15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor retornado nesta chamada de função?
undefined
3
8
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a sintaxe correta de uma arrow function que retorna a soma de a e b?
const soma = (a, b) { return a + b }
const soma = (a, b) -> a + b
function soma(a, b) => a + b
const soma = (a, b) => a + b
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece se você tentar acessar uma variável declarada com let fora de seu bloco {}?
É retornado null
Retorna undefined
Dá erro
Funciona normalmente
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em function exemplo(...args) {}, o que args representa?
Um único número
Uma função
Um array com todos os argumentos passados
Um objeto vazio
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual método de array retorna um novo array com todos os elementos que passaram em um teste?
map()
filter()
forEach()
reduce()
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que array.map() retorna?
Um novo array com os elementos modificados
O mesmo array alterado
A quantidade de elementos
Um novo array com os elementos filtrados por uma condição
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual método é usado para juntar dois ou mais arrays?
merge()
concat()
joint()
combine()
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