ngOnInit() {
  this.encrypted = this.enCryption(Token, data); // here this.encrypted getting null
 }
 public enCryption(token, data){
    return this.encryptionService.set(key, data).subscribe(data=>{});
 }
i want to reuse this enCryption() function and i dont want no function executed this (bottom) way
 this.encryptionService.set(key, data).subscribe(data=>{
 this.anotherfunction(data);
 Or
 this.encrypted = data
 })
 
    