UNIT 5 WD

UNIT 5 WD

University

25 Qs

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UNIT 5 WD

UNIT 5 WD

Assessment

Quiz

Other

University

Practice Problem

Hard

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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a feature of modern JavaScript?

Closures

Prototypes

Promises & Async/Await

All of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to handle asynchronous operations in modern JavaScript?

setTimeout()

async/await

clearInterval()

document.write()

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does `use strict` do in JavaScript?

Enables strict mode with stricter error handling

Disables all errors

Converts JavaScript to Java

Limits memory usage

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which JavaScript feature allows functions to remember variables from their scope?

Promises

Closures

Classes

Modules

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In JavaScript ES6, which keyword is used to create a block-scoped variable?

var

const

static

define

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Everything in JavaScript is based on:

Arrays

Functions

Objects

Classes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The property of an object in JavaScript is a:

Function only

Variable only

Key-value pair

Array element

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