JSFiddle - React, Tailwind, and code Playground

JavaScript

var pass = "m2015001";     //document.myForm.password1.value;
var patt = new RegExp("^(?=(.*[a-zA-Z]){1,})(?=(.*[0-9]){2,}).{8,}$");

if ( !patt.test(pass) ) 
{
    alert("Password must be 8 digits long. It must include a maximum of two numbers.");
    //return false;           
} 
else 
{
    alert("Valid!");
}