Angular 5 error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'

Question

I need to set a cookie as below:

start: number;
...
this.start = Math.floor(Date.now()/1000);
...
if(!this._cookieService.check('confirmTimeoutStarted')){
  this._cookieService.set('confirmTimeoutStarted', this.start);
}

But I get:

error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.

Am I supposed to define the cookie variable type or something?

Answer 1

Cookies are stored in string format. It looks like the signature of the this._cookieService.set method accepts string, so you can do this:

this._cookieService.set('confirmTimeoutStarted', String(this.start));