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- var header = document.getElementById("header")
- var button = document.getElementById("login-button")
- button.addEventListener("click", function() {
- validateForm()
- })
- function validateForm() {
- if(checkPassword() == true && checkUsername() == true) {
- header.innerHTML = "<h1>You're now logged in!</h1>"
- } else {
- alert("Incorrect!")
- }
- }
- function checkPassword() {
- var password = document.getElementById("password").value
- if (password == "12345678") {
- return true
- } else {
- return false
- }
- }
- function checkUsername() {
- var username = document.getElementById("username").value
- var characters = username.split("")
- var presence = characters.map(function(element) {
- return Number.isInteger(parseInt(element))
- })
- if (presence.indexOf(true) !== -1) {
- return true
- } else {
- return false
- }
- }
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