angular retry with times. angular lifescycle

https://www.jianshu.com/p/1e1c7e7cec50

var example = this.service.gettest().pipe(

      map((val) => {

console.log(val.toString())

        if (parseInt(val.toString()) < 20) {

          throw new Error('oops!');

        } else {

          return val;

        }

      }),

      retryWhen(errors =>

        errors.pipe(

          tap(val => {

            console.log("Retry in 10 sec");

          }),

          take(attempts),

          delay(1000)

        ))

      );

    example.subscribe({

      next: (val: any) => console.log(val),

      error: (val: any) => console.log(val)

    });

  }