type.Any

Like an identity function, type.Any is a TypeObject that allows any type of a value to be allowed without checking or coercion.

import { ObservableObject, type } from "can";

class EnvironmentVariable extends ObservableObject {
  static props = {
    value: type.Any
  };
}

let env = new EnvironmentVariable();
env.value = 42;
console.log(env.value); // -> 42

env.value = null;
console.log(env.value); // -> null

env.value = [];
console.log(env.value); // -> []

env.value = new Date();
console.log(env.value); // -> Date

type.Any returns the same instance as passed into convert so they are referentially identical.

import { ObservableObject, type } from "can";

class Schedule extends ObservableObject {
  static props = {
    firstPeriod: type.Any
  };
}

let today = new Date();
let sched = new Schedule();

sched.firstPeriod = today;

console.log(sched.firstPeriod === today); // -> true
console.log(sched.firstPeriod); // -> today