const isPasswordComplex = (password)=>{
let mediumPassword = new RegExp('((?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[^A-Za-z0-9])(?=.{6,}))|((?=.*[a-z])(?=.*[A-Z])(?=.*[^A-Za-z0-9])(?=.{8,}))');
let strongPassword = new RegExp('(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[^A-Za-z0-9])(?=.{8,})');
return strongPassword.test(password);
};