// 12. Object.defineProperty()

let sampleObject = {};
Object.defineProperty(sampleObject, 'property1', {
  value: 42,
  writable: false
});
console.log(sampleObject.property1);

// 13. Object.defineProperties()

let sampleObject = {};
Object.defineProperties(sampleObject, {
  property1: {
    value: 42,
    writable: true
  },
  property2: {
    value: 'Hello',
    writable: false
  }
});
console.log(sampleObject.property1);
console.log(sampleObject.property2);

// 14. Object.getOwnPropertyDescriptors()

let sampleObject = { name: 'John', age: 30 };
let descriptors = Object.getOwnPropertyDescriptors(sampleObject);
console.log(descriptors);

// 15. Object.setPrototypeOf()

let sampleObject = {};
let prototypeObject = { prototypeProp: 'prototype' };
Object.setPrototypeOf(sampleObject, prototypeObject);
console.log(sampleObject.prototypeProp);

// 16. Object.is()

let value1 = 5;
let value2 = 5;
console.log(Object.is(value1, value2));

// 17. Object.entries()

let sampleObject = { a: 'Apple', b: 'Ball', c: 'Cat' };
let entries = Object.entries(sampleObject);
console.log(entries);

// 18. Object.fromEntries()

let entries = [['a', 1], ['b', 2], ['c', 3]];
let newObject = Object.fromEntries(entries);
console.log(newObject);

// 19. Object.values()

let sampleObject = { a: 'Apple', b: 'Ball', c: 'Cat' };
let values = Object.values(sampleObject);
console.log(values);

// 20. Object.keys()

let sampleObject = { a: 'Apple', b: 'Ball', c: 'Cat' };
let keys = Object.keys(sampleObject);
console.log(keys);

// 21. Object.preventExtensions()

let sampleObject = { name: 'John', age: 30 };
Object.preventExtensions(sampleObject);
// Prevents adding new properties to an object

// 22. Object.isExtensible()

let sampleObject = { name: 'John', age: 30 };
console.log(Object.isExtensible(sampleObject));
// Checks if an object is extensible or not

// 23. Object.isSealed()

let sampleObject = { name: 'John', age: 30 };
console.log(Object.isSealed(sampleObject));
// Checks if an object is sealed or not

// 24. Object.isFrozen()

let sampleObject = { name: 'John', age: 30 };
console.log(Object.isFrozen(sampleObject));
// Checks if an object is frozen or not

// 25. Object.getOwnPropertySymbols()

let sampleObject = { [Symbol('a')]: 'value' };
console.log(Object.getOwnPropertySymbols(sampleObject));
// Retrieves an array of all symbol properties found directly upon a given object

Object methods 👆

Numbers methods 👇

// 1. Number.parseFloat()

(async () => {
  let { input } = require("jsshort");
  let strFloat = await input("Enter a floating-point number: ");
  console.log(Number.parseFloat(strFloat));
})();

// 2. Number.parseInt()

(async () => {
  let { input } = require("jsshort");
  let strInt = await input("Enter an integer: ");
  let radix = parseInt((await input("Enter the radix (optional): ")) || 10);
  console.log(Number.parseInt(strInt, radix));
})();

// 3. Number.isNaN()

(async () => {
  let { input } = require("jsshort");
  let value = parseFloat(await input("Enter a value to check for NaN: "));
  console.log(Number.isNaN(value));
})();

// 4. Number.isFinite()

(async () => {
  let { input } = require("jsshort");
  let num = parseFloat(await input("Enter a number to check if it's finite: "));
  console.log(Number.isFinite(num));
})();

// 5. Number.isInteger()

(async () => {
  let { input } = require("jsshort");
  let num = parseFloat(await input("Enter a number to check if it's an integer: "));
  console.log(Number.isInteger(num));
})();