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The Modern JavaScript Bootcamp (2019) - Converting to Promises

The Modern JavaScript Bootcamp (2019) - Converting to Promises

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal of converting callback patterns to promises in JavaScript?

To reduce the number of lines of code

To increase the security of the code

To simplify asynchronous code handling

To make the code run faster

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key advantage of using shorthand syntax in arrow functions?

It enables the use of more parameters

It makes the code more readable

It allows for faster execution

It increases the function's scope

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the resolve function in a promise?

To handle errors

To execute synchronous code

To return a value when the promise is fulfilled

To delay the execution of code

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When converting getPuzzle to a promise-based API, what is removed from the function signature?

The callback argument

The return type

The HTTP method

The URL parameter

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the reject function do in a promise?

It logs the error to the console

It indicates that the promise has failed

It handles successful operations

It resolves the promise

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the app.js file, what method is used to handle the resolved and rejected states of a promise?

catch

finally

then

resolve

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the benefit of using promises over callbacks?

Promises provide better error handling

Promises are faster

Promises are easier to debug

Promises use less memory

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