Hi Alan,

I am glad that you are trying this out! I have tested your code with withinRange(“2.3.2”, “~2.3.3”) and it returned true when it should actually return false.

My suggestions on your code would be

• try to be consistent and use only const and let, don’t use var
• write test cases using Jest based on the requirements
• refer to the requirements on https://devhints.io/semver

Keep coding and I hope you enjoy it!