var username = document.querySelector('#username')
var password = document.querySelector('#password')
var password2 = document.querySelector('#password-2')

var test1 = /^\w|\d]{3,10}$/.test(username.value)
var test2 = /^[\w|\d]{6,20}$/.test(password.value)
var test3 = (password.value === password2.value)

return test1 && test2 && test3