// 16. endsWith()

(async () => {
  let { input } = require("jsshort");
  let strEndsWith = await input("Enter a string: ");
  let searchStringEnd = await input("Enter search string: ");
  console.log(strEndsWith.endsWith(searchStringEnd));
})();

// 17. substr()

(async () => {
  let { input } = require("jsshort");
  let strSubstr = await input("Enter a string: ");
  let startSubstr = parseInt(await input("Enter start index: "));
  let lengthSubstr = parseInt(await input("Enter length: "));
  console.log(strSubstr.substr(startSubstr, lengthSubstr));
})();

// 18. trimStart() - trimLeft() is an alias

(async () => {
  let { input } = require("jsshort");
  let strTrimStart = await input("Enter a string: ");
  console.log(strTrimStart.trimStart());
})();

// 19. trimEnd() - trimRight() is an alias

(async () => {
  let { input } = require("jsshort");
  let strTrimEnd = await input("Enter a string: ");
  console.log(strTrimEnd.trimEnd());
})();

// 20. match()

(async () => {
  let { input } = require("jsshort");
  let strMatch = await input("Enter a string: ");
  let regexPattern = await input("Enter regular expression: ");
  console.log(strMatch.match(regexPattern));
})();

String functions in js 👆

Javascript object methods 👇

// 1. Object.keys()

let sampleObject = { name: 'John', age: 30, city: 'New York' };
console.log(Object.keys(sampleObject));

// 2. Object.values()

let sampleObject = { name: 'John', age: 30, city: 'New York' };
console.log(Object.values(sampleObject));

// 3. Object.entries()

let sampleObject = { name: 'John', age: 30, city: 'New York' };
console.log(Object.entries(sampleObject));

// 4. Object.assign()

let obj1 = { a: 1, b: 2 };
let obj2 = { b: 4, c: 5 };
let mergedObject = Object.assign({}, obj1, obj2);
console.log(mergedObject);

// 5. Object.freeze()

let sampleObject = { name: 'John', age: 30 };
Object.freeze(sampleObject);
// Attempting to modify a frozen object will not work

// 6. Object.seal()

let sampleObject = { name: 'John', age: 30 };
Object.seal(sampleObject);
// Attempting to add/delete properties in a sealed object's descriptor will not work

// 7. Object.getOwnPropertyDescriptor()

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

// 8. Object.getOwnPropertyNames()

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

// 9. Object.getPrototypeOf()

let sampleObject = {};
console.log(Object.getPrototypeOf(sampleObject));

// 10. Object.hasOwnProperty()

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

// 11. Object.create()

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

// 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);