What is the default visibility of a variable in Typescript, what is the importance of var when declaring variables?

Question

When declaring a variable, when we omit the visibility parameter (public, private and protected) the variable is created by default in which visibility?

export class AddEditTaskPage {

  idade: number;
  valor: string;
....

Just one more question, the word var is it optional? Do you have any particular reason to use it?

export class AddEditTaskPage {

  var idade: number;
  valor: string;
....

Answer 1

Is public by default.

In Typescript, in class members, the var is unnecessary, is adopted the semantics of var even without its explicit use.