How to secure login and user in angular -

i new in angular 2 try create login user in front site question how secure user login. have implement store user login token cookies in browser , page it's right way ?

 this.loginservice.login(this.user)       .subscribe(result => {           if (result != undefined ){                this.cookieservice.putobject("logincookie", result);                this.router.navigate(['/userlist']);           } 

the preferred way use localstorage.

this.loginservice.login(this.user)   .subscribe(result => {       if (result != undefined ){            localstorage.setitem("username", result);            this.router.navigate(['/userlist']);       } 

you should store username in localstorage not password security purpose.

you can prevent user navigate without login using authguard. detailed explanation of authguard here.