JavaScript Fundamentals Coding Practice Problems

Mastering the fundamentals of JavaScript is important for building a strong foundation in web development. This comprehensive guide covers a curated list of JavaScript fundamentals coding practice problems across various fundamental topics, including operators, control flow, numbers, strings and more.

Whether you're a beginner just starting out or an experienced developer looking to refine your skills, these problems will help you become proficient in core JavaScript concepts.

JavaScript Fundamentals Practice Questions

Basic

• Add Two Numbers
• if Statement
• else statement
• else if Statement
• Switch Statement
• Swap Two Variables
• Multiplication Table
• Find the Remainder
• Check Even or Odd
• Check Positive or Negative
• Find the Larger Number
• Concatenate Two Strings
• Convert Uppercase to Lowercase
• Convert Lowercase to Uppercase
• Closest Number
• Pattern 5
• Pattern 10
• Armstrong Numbers
• Perfect Numbers

Easy

• Power of 2
• Array Search
• Largest Element in an Array
• Day of the Week
• Adding One
• Prime Numbers
• Prime Factorization
• Extract Number from String
• Palindrome String
• Remove Space
• Convert List of Characters to String
• Check if a String is an Isogram
• Panagram Checking
• Remove Characters from Alphanumeric String
• Count type of Characters
• Sum of Large Numbers
• Sum of Digits
• Simple Interest
• GCD of Two Numbers
• LCM And GCD
• Series AP
• Print the Kth Digit
• Triangular Number

Medium

• Evaluate Formulae
• nth Term of Arithmetic Progression
• nth Term of Geometric Progression
• Convert Celsius to Fahrenheit
• First Set Bit
• Sum of AP Series
• Find LCM and GCD
• Convert Decimal Number to Binary
• Factorial of a Number
• Check Strong Number
• Check Palindrome Number
• Find the Sum of Digits of a Number
• Check Armstrong Number
• Fibonacci Series up to N Terms

JavaScript Basic Quizzes

• Introduction
• Variables and Data Types
• Operators
• Control Flow
• Arrays