Test Your JavaScript Fundamental (Part 1)
Authored by Haka MD
Computers
University
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let yy = 10;
console.log(++yy);
console.log(yy++);
console.log(yy);
11
12
10
11
12
12
11
12
13
11
11
12
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
let aa = "10";
console.log(aa++);
console.log(++aa);
console.log(aa);
10
12
12
11
12
10
11
11
10
undefined
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
let s = [1, 9, 7, 100, 2, 99, 88, 20];
s.splice(2, 4, 91, 92, 93);
console.log(s);
[1, 9, 91, 92, 93, 88, 20]
[1, 91, 92, 93, 99, 88, 20 ]
[1, 9, 7, 20, 91, 92, 93]
[1, 9, 7, 91, 92 , 93, 20]
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
const arrs = [1, 2, 3];
const { log } = console;
log(arrs.push(4));
[1, 2, 3, 4]
error
4
[1, 2 , 3]
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
console.log(0.2 + 0.3 === 0.5);
true
false
error
NaN
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
const arrHewan = ["ayam", `berang"`, "kambing"];
for (let i = 0; i < arrHewan.length; i++) {
console.log(arrHewan[i]);
}
ayam
berang"
kambing
kambing
error
undefined
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
let multiply = (a, b) => a * b;
let square = (n) => multiply(n, n);
let printSquare = (n) => {
let squared = square(n);
console.log(square(n));
console.log(squared);
};
printSquare(5);
25
25
undefined
25
25
undefined
error
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