shahab570

function square(x,result = x *x ) {
  console.log(result);
}
square(5);         //25
square(6) ;        //36

shahab570

const promise = new Promise((resolve, reject) => {
  has_money = true;
  setTimeout(() => {
    if (has_money) {
      resolve("Here is your car. Enjoy your ride");
    } else {
      reject("Sorry, I don't have money to buy car");
    }
  }, 5000);
});

shahab570

const promise = new Promise((resolve, reject) => {
  has_money = false;
  setTimeout(() => {
    if (has_money) {
      resolve("Here is your car. Enjoy your ride");
    } else {
      reject("Sorry, I don't have money to buy car");
    }
  }, 5000);
});

shahab570

promise.then(
  (value) => {
    /* run when promise resolved */
  },
  (error) => {
    /* run when promise rejected */
  }
);

shahab570

const new_car = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve("This is the car.Enjoy!!!");
  }, 3000);
});

new_car.then(
  (value) => {
    alert(value);  //ths code runs because promise resolves
  },

shahab570

const new_car = new Promise((resolve, reject) => {
  setTimeout(() => {
    resolve("This is the car.Enjoy!!!");
  }, 3000);
});

new_car
  .then((value) => {
    alert(value); //ths code runs because promise resolves
  })

shahab570

let check_files = function () {
  return new Promise((resolve, reject) => {
    resolve("I checked files, ");
  });
};
let make_calls = function (message) {
  return new Promise((resolve, reject) => {
    resolve(message + "," + "I made all important calls");
  });
};

shahab570

var x =[1,2,3];
console.log(x);       //[1,2,3]
console.log(...x);    //1  2  3

shahab570

var str = "Football";
var arr =[1,2,3];
console.log(...str);     // F o t b a l l 
console.log(...arr);    // 1 2 3

shahab570

let x = [1,2,3];
let y = [4, 5,6];
console.log([...x,...y]); ///[1,2,3,4,5,6]