
Treinamento JS - Capítulo 3
Authored by J.P. Vendramini
Computers
Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A seguinte expressão:
result == true ? “Acertou” : “Erro”
Faz parte de qual categoria de operadores?
Unário
Ternário
Binário
Quaternário
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o output do seguinte código:
"true" && "false"
true
false
"true"
"false"
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let x = 3;
x = x * x;
A linha "x = x * 3" poderia ser substituída por qual comando:
x += x;
x **= x;
x *= 2;
x **= 2;
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let x = 10;
let y = x++;
console.log(x, y);
Qual o valor de x e de y?
x: 10, y: 10
x: 11, y: 11
x: 11, y: 10
x: 10, y: 11
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let x = 10;
let y = ++x;
console.log(x, y);
Qual o valor de x e de y?
x: 10, y:11
x: 11, y:11
x: 11, y:10
x: 10, y:10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o resultado da seguinte comparação:
10 === "10"
true
undefined
false
Error
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o valor de x?
let x = 10 * 2 ** 2 / 4 + 2;
102
12
24
42
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