script.js

console.log("working")
document.querySelector(".btn").addEventListener ("click", e=>{
    e.preventDefault()
    console.log("clicked....")
    console.log(username.value,password.value)
    let passwords=localStorage.getItem("passwords")
    console.log(passwords)
    if(passwords==null){
        let json=[]
        json.push({username:username.value,password:password.value})
        alert("Password saved");
        localStorage.setItem("passwords",JSON.stringify(json))
         
    }
    else {
        let json=JSON.parse(localStorage.getItem("password"))
        json.push({username:username.value,password:password.value})
        alert("Password saved");
        localStorage.setItem("passwords",JSON.stringify(json)) 
    }

})