Online Access Free JavaScript-Developer-I Exam Questions

No.# In the exam question, the options are Vue, Express, React, and Koa. In this case, the correct answers will be Vue and React.

No.# Correct answer is 25134 i.e Option B.

Simple explanation:

2 → printed first (main code)
5 → printed second (main code)
1 → from setTimeout(..., 0)
3 → printed after 1 second (inside Promise)
4 → from .catch() after rejection

Check Below code:
setTimeout(() => {
console.log(1);
}, 0);

console.log(2);

new Promise((resolve, reject) => {
setTimeout(() => {
reject(console.log(3));
}, 1000);
}).catch(() => {
console.log(4);
});

console.log(5);

No.# Yes, C is correct. There might be some confusion in the word, like the option is userInformation["email"];
So A and C are the correct answers.

No.# Line 01: let res = sum3([1, 2, 3]);
Line 02: console.assert(res === 6);
Line 03:
Line 04: res = sum3([1, 2, 3, 4]);
Line 05: console.assert(res === 6);
If sum3 now sums all numbers in the array, which two results occur? (Choose 2)
A) Line 05 fails 
B) Line 02 passes 
C) Line 02 fails 
D) Line 05 passes

Answer: A and B

Explanation :

sum3([1,2,3]) → 6, so Line 02 assertion (res === 6) passes → B.
sum3([1,2,3,4]) → 10, so Line 05 assertion (res === 6) fails → A.

The updated function sums all elements; first case still equals 6, second no longer does.
To fix the test, change Line 05 to console.assert(res === 10);

No.# B sum()(5,5)
C sum()(10)
D sum(5)(5)

Yes option are incorrect please fix it owner

No.# B and C look fine as answer.
To the commenter before me, how can there be information about fourWheels if the debugger stops one line short? lol

No.# A. Node --inspect-brk index.js

No.# How could the Option C correct? userInformation is not a function which can be called like that. Option A and Option D are correct.

No.# A and B are Correct

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No.# setTimeout (() => (
console.log(1);
). 0);
console.log(2);
new Promise ((resolve, reject ) => (
setTimeout(() => (
reject(console.log(3));
), 1000);
)).catch(() => (
console.log(4);
));
console.log(5);

Correct Ans - 2 1 5 3 4

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No.# For me, the answer is B,C,D.
D not correct cause the state pending can become fulfilled or rejected. A promise that is either resolved or rejected is called “settled”.
A not correct, refer to https://javascript.info/promise-basics

No.# Richard, your link explains why the answer is B instead of C.

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No.# B and D

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No.# Actually if you look closer: C. Console.assert (await functionUnderTest(true), ' OK ') here ' OK ' contains whitespace at start and at end. Thus, the correct answer is A

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