JavaScript Fundamentals

JavaScript Fundamentals

8th Grade

15 Qs

quiz-placeholder

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JavaScript Fundamentals

JavaScript Fundamentals

Assessment

Quiz

Computers

8th Grade

Hard

Created by

harshit shukla

Used 6+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is not a valid primitive data type in JavaScript?

Number

String

Object

Boolean

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the correct way to declare an empty array in JavaScript?

var myArray = {};

var myArray = [];

var myArray = new Array();

Both b and c are correct

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the output of the following code?

function greet(name) {

console.log("Hello, " + name + "!");

}

greet("Alice");

Hello, Alice!

function greet(name) {...}

undefined

Error

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which method is used to access a specific element in an array by its index?

getElementsByIndex

getElementAt

charAt ✅

None of the above

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How would you retrieve a reference to an HTML element with the ID "myElement" using JavaScript?

document.getElementByID("myElement");

document.getElementById("myElement");

document.querySelectorAll("#myElement");

document.getElementsByClassName("myElement");

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the difference between .innerHTML and .innerText?

.innerHTML includes HTML tags, while .innerText does not

.innerText includes HTML tags, while .innerHTML does not

There is no difference between them

.innerHTML is used for setting content, while .innerText is used for getting content

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which method is used to get the value of an attribute of an HTML element?

getAttribute()

getElementAttribute()

getAttributeValue()

None of the above

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