logo CodeStepByStep logo

Main Page → Exercises → JavaScript → Solve an Exercise

binaryToDecimal

Language/Type: JavaScript binary parameters return
Related Links:
Author: Melissa Hovik (on 2016/09/25)

Write a function named binaryToDecimal that accepts an integer parameter whose digits are meant to represent binary (base-2) digits, and returns an integer of that number's representation in decimal (base-10). For example, the call of binaryToDecimal(101011) should return 43.

If you find your solution returning unexpected double values, remember that JavaScript will convert integer (whole number) values to double values when divided by a number that is not a factor. You can avoid this conversion by using JavaScript's parseInt function which converts any number to an integer value. For example, the call of parseInt(2.13333) would return 2.

Constraints:

  • Do not use a string in your solution.

Function: Write a JavaScript function as described, not a complete program.

You must log in before you can solve this problem.

Log In

Need help?

Stuck on an exercise? Contact your TA or instructor.

If something seems wrong with our site, please

Is there a problem? Contact us.