The assignment of type 'null' to type 'number' is not valid

In my user.model.ts file, I have a UserID with the type 'number'. In my user.component.ts file, I have a function that resets my form.

resetForm(form?: NgForm) {
    if(form!=null)
    form.resetForm();
    this.service.formData = {
      UserID : null,
      UserName: '',
      Password: '',
      confirmPass: '',
      FirstName: '',
      lastName: '',
      email: '',
      UserRole: ''
    }
  }

I am encountering an error stating that 'null' is not assignable to type 'number' for UserID. How can I resolve this issue?

angulartypescript

Answer №1

Consider updating the userId variable to one of the following options:

userID?: number;

or

userID: null | number;

within your service implementation

Answer №2

To avoid dealing with these errors, you have the option to disable the "strictNullChecks" setting by setting it to false in the compilerOptions section of your tsconfig.json file

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