
Array em JavaScript
Authored by MARCOS SILVA
Instructional Technology
3rd Grade
Used 2+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você declara um array vazio em JavaScript?
`let array = {};`
`let array = [];`
`let array = ();`
`let array = "";`
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você inicializa um array com os números 1, 2 e 3 em JavaScript?
`let array = [1, 2, 3];`
`let array = {1, 2, 3};`
`let array = (1, 2, 3);`
`let array = "1, 2, 3";`
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você acessa o primeiro elemento de um array chamado `meuArray`?
`meuArray[0]`
`meuArray[1]`
`meuArray.first`
`meuArray.get(0)`
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual método adiciona um elemento ao final de um array?
`push()`
`pop()`
`shift()`
`unshift()`
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual método remove o último elemento de um array?
`push()`
`pop()`
`shift()`
`unshift()`
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você cria um array bidimensional em JavaScript?
`let array = [[1, 2], [3, 4]];`
`let array = {1, 2, 3, 4};`
`let array = (1, 2, 3, 4);`
`let array = "1, 2, 3, 4";`
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você acessa o elemento 4 em um array bidimensional `meuArray` definido como `[[1, 2], [3, 4]]`?
`meuArray[1][1]`
`meuArray[0][3]`
`meuArray[3][0]`
`meuArray[2][2]`
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