
Introdução ao JavaScript
Authored by CLEYTON PINHEIRO
Computers
2nd Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais são os tipos primitivos em JavaScript?
String, Number, Boolean, Object, Array
String, Number, Boolean, Undefined, Null, Symbol, BigInt
String, Number, Boolean, Function, Object
String, Number, Boolean, Array, Function
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a diferença principal entre `var`, `let` e `const` em JavaScript?
`var` é global, `let` e `const` são locais
`var` e `let` podem ser reatribuídos, `const` não
`let` e `const` são globais, `var` é local
`var` e `const` são locais, `let` é global
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções abaixo é uma coleção em JavaScript?
String
Array
Number
Boolean
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para que serve o JavaScript?
Criar documentos de texto
Estilizar páginas web
Adicionar interatividade a páginas web
Criar bancos de dados
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a sintaxe correta para declarar uma variável usando `let`?
`let x = 10;`
`var x = 10;`
`const x = 10;`
`x = 10;`
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor padrão de uma variável não inicializada em JavaScript?
null
0
undefined
NaN
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é um exemplo de tipo primitivo?
Array
Object
Boolean
Function
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