JavaScript Pass by value, Pass by Reference, Scope Hoisting

JavaScript Pass by value, Pass by Reference, Scope Hoisting

Professional Development

15 Qs

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JavaScript Pass by value, Pass by Reference, Scope Hoisting

JavaScript Pass by value, Pass by Reference, Scope Hoisting

Assessment

Quiz

Computers

Professional Development

Practice Problem

Hard

Created by

Kushal Das

Used 2+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

What is the default parameter passing mechanism in JavaScript?

Pass by Value

Pass by Reference

Pass by Pointer

Pass by Memory

2.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

When passing a primitive type to a function in JavaScript, what is the behavior?

Pass by Value

Pass by Reference

Pass by Address

Pass by Instance

3.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Which of the following data types is passed by reference in JavaScript?

String

Number

Object

Boolean

4.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

In JavaScript, when an object is passed to a function, what is actually passed?

Object's reference

Object's value

Object's prototype

Object's address

5.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

What is the scope of a variable defined inside a function in JavaScript?

Global Scope

Local Scope

Block Scope

Function Scope

6.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

In JavaScript, what is the scope of a variable declared with the var keyword?

Global Scope

Local Scope

Block Scope

Function Scope

7.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

What is hoisting in JavaScript?

Lifting weights in the gym

Moving declarations to the top of the scope

Declaring a variable with a high priority

Function Scoped. Running code before it is defined

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