TS types task. Number types.

Number.types.task.js

const age = 30;
let yearsOfExperience = 0.5;
const notANumber = NaN;
// we know exactly that we have only 4 possible values: 1, 2, 3, 4.
let accessRigth = 2;

accessRigth = 5; // should be a TS error;
yearsOfExperience = 'hello'; // should be a TS error;

// 'target' property of the tsconfig.json file has to be `ES2020`;
const bigInt = BigInt(220 ** 20);
let bigIntLiteral = 999999n;
bigIntLiteral = 10;