Regular Expressions - Restrict Possible Usernames

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

I do not understand this. How does this solution not FORCE the username to have digits on the end to return true?

Your code so far

let username = "JackOfAllTrades";
let userCheck = /^[a-z][a-z]+\d*$|^[a-z]\d\d+$/i// Change this line
let result = userCheck.test(username);
console.log(result);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Challenge: Regular Expressions - Restrict Possible Usernames

Link to the challenge:

2

It looks like you are using an or expression. And I notice the first expression doesn’t force the last character to be a digit. The way or works, which ever expression works first, is the one used.

The last \d has a * next to it which means 0 or more

3

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