While loop Programs in Javascript: Reverse Printing a Number

📰 Dev.to · Deva I

Learn to reverse print a number in Javascript using a while loop, a fundamental programming concept

beginner Published 31 Mar 2026
Action Steps
  1. Write a while loop in Javascript to continuously divide a number by 10 and store the remainder
  2. Use the modulus operator (%) to get the remainder of the division
  3. Store the remainder in a variable and print it
  4. Repeat the process until the number becomes 0
  5. Test the program with different inputs to verify its correctness
Who Needs to Know This

Junior software engineers and frontend developers can benefit from understanding this basic programming concept to improve their coding skills

Key Insight

💡 The modulus operator (%) is used to get the remainder of a division operation, which is essential for reversing a number

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🚀 Reverse print a number in Javascript using a while loop! 💻

Full Article

REVERSE PRINTING A NUMBER: PROGRAM: EXPLANATION: assume 123. 123%10 = remainder 3. 12% 10 =...
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