JavaScript Algorithms and Data Structures Projects - Telephone Number Validator

JavaScript
1

Tell us what’s happening:
So there are 3 tests that I couldn’t pass:

  1. telephoneCheck(“1 555)555-5555”) should return false.
  2. telephoneCheck(“555)-555-5555”) should return false.
  3. telephoneCheck(“(555-555-5555”) should return false.

In both instances in my regex, I made sure that I added “?” at the end for “(” and “)” to match zero or one instance of the open and close parentheses. But somehow, I couldn’t pass the 3 tests above.

  **Your code so far**

function telephoneCheck(str) {
let telRegex = /^1(\s)?\(?(\d{3})\)?[- ]?(\d{3})[- ]?(\d{4})$|^\(?(\d{3})\)?[- ]?(\d{3})[- ]?(\d{4})$/;

return telRegex.test(str);
}

telephoneCheck("555-555-5555");

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: JavaScript Algorithms and Data Structures Projects - Telephone Number Validator

Link to the challenge:

2

It looks like your regex isn’t accounting for the fact that the ()s must come in pairs.

3

I’m sorry, but can you be more specific?

4

All of these test cases are when you have a different number of ) and (

5

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