May 29, 2023 - function telephoneCheck(str) { // A phone number must have 10 digits or 11 digits if the first number is a 1 for (let i = 0; i < str.length; i++) { if (str[i] > "0" && str[i] <= "9" && str.length() == 10 || str[i] >…

<h1>JavaScript Algorithms and Data Structures Projects: Telephone Number Validator</h1> <p>Return true if the passed string looks like a valid US phone number. The user may fill out the form field any way they choose as long as it has the format ...

freeCodeCamp JavaScript Algorithms and Data Structures Projects: Telephone Number Validator - telephoneCheck.js

October 2, 2019 - Last project was the Caesars Cipher, the third entry in our series. You can check it out here. Now we're doing the Telephone Validator. Our job is to determine whether a given phone number is a valid US number or not.

December 12, 2018 - Hi everybody! I’ve been working on the Telephone Number Validator and I’ve gotten myself a bit stuck. My strategy was originally to just remove all standard formatting tools in phone numbers (parentheses, spaces, dashes) and then check that everything in the number was digits.

When you click on the #check-btn element without entering a value into the #user-input element, an alert should appear with the text "Please provide a phone number". When you click on the #clear-btn element, the content within the #results-div ...

September 2, 2021 - “Freecodecamp.org.” Edited by Quincy Larson, Telephone Number ValidatorPassed, Quincy Larson, 2014, www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/telephone-number-validator.

If the country code is provided, you must confirm that the country code is 1. Return true if the string is a valid US phone number; otherwise return false.<br> View additional requirements here: <a href="https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/telephone-number-validator" target="_blank">FCC Telephone Validator</a>

December 12, 2020 - I learned a lot in this challenge. It’s important to account for the possible cases in the test phase instead of while coding. What I’m saying is that coding the solution is a different session from coming up with the te…

October 9, 2021 - My code is bellow and I still have 3 more types of numbers to validate. telephoneCheck(“1 555)555-5555”) telephoneCheck(“555)-555-5555”) telephoneCheck("(555-555-5555") those 3 must return false my code so far… function telephoneCheck(str) ...

FreeCodeCamp's JavaScript course project to build a telephone number validator. - NnejiBen/Telephone-Number-Validator

May 25, 2021 - Telephone Number Validator Hints/Solutions are not provided for certification projects as these are intended to be a test of your learning and understanding.

February 23, 2024 - Hey so I finished writing my JS for the Telephone Validator project. Something weird happens and I can’t work out what’s going on… So for a few of the numbers the validation function returns true, but then I run it aga…

August 16, 2019 - freecodecamp - Telephone Number Validator by stevva

@j-schuster wrote: Not the best solution, but it works. Took a little bit longer approach reading up on sorting U.S phone numbers as opposed to using the six criteria given in the description.... View Article ... @RyzorBent wrote: also not the best but it works! function telephoneCheck(str) { // ...

March 14, 2024 - I am working on my telephone number validator project and i could use some help. I need text to display if the phone is valid or not i thought about using an if and else statment but im not sure how to go about that. The part im stuck on is if return statment is true than display valid us phone numbe thanks const userInput = document.getElementById("user-input"); const checkBtn = document.getElementById("check-btn"); const clearBtn = document.getElementById("clear-btn"); const results = docu...