CHayeCode.js

// // https://github.com/lionheartAbd/https-github.com-hiteshchoudhary-js-hindi-youtube
// // ************************************Strings***********************
name= "Shifa"
age=21
console.log(`my name is ${name} and my age is ${age}`);

//*********************/  Strings Method************** 
const str= new String("Hello Wolrd")
console.log(str);
console.log(str.charCodeAt(3));//give us a unicode value
console.log("Shifa".concat (" Rabbnai"));
console.log(str.endsWith('y'));
console.log(str[4]);
console.log(str.charAt(6));



 // ******************Number*******************
 const Num=  new Number (225)
 console.log(Num);
 
 console.log(Num.toFixed());
 console.log(Num.toExponential(1));
let num=(2256788990057)
 console.log(num.toLocaleString(2)); // add a comma b/n lasrge numbers
 console.log(Num.toString().length);
let n=9843.532
 console.log(n.toPrecision(4)); //used for a preceise value
 console.log(Num.valueOf(1));

// ********************************Math****************************
console.log(Math);
console.log(Math.abs(-567));
console.log(Math.round(832.9876));
console.log(Math.ceil(4.1)); //always take a higher value  after point
console.log(Math.floor(4.8)); // take lower value after point
console.log(Math.sqrt(35));

console.log(Math.random());
console.log(Math.floor((Math.random() *6 )+1));

const min=10
const max=20

console.log(Math.floor(Math.random() * (max-min +1))+min);


//************************************** Dates*********************/
let myDate = new Date()
console.log(myDate);
console.log(myDate.toDateString());
console.log(myDate.toISOString());
console.log(myDate.toString());
console.log(myDate.toJSON());
console.log(myDate.toTimeString());
console.log(myDate.toUTCString());
console.log(typeof myDate);
  //  ************************Date Methods***********************
let MyCreatedDate1 = new Date ("2025-01-20") // use date as YY/MM/DD
let MyCreatedDate2 = new Date(2022,1,20)  //only for a date
let MyCreatedDate3 = new Date(2022 ,3,1,5,3) //date and time both
let MyCreatedDate4 = new Date ("11-20-2002")  // MM/DD/YY  
console.log(MyCreatedDate1.toLocaleString());
console.log(MyCreatedDate2.toLocaleString());
console.log(MyCreatedDate3.toLocaleString());
console.log(MyCreatedDate4.toLocaleString());

// *******************Time Stamp*****used for quizes etc give time in mili second
let myTimeStemp = Date.now()
let myCreatedDate = new Date ("11-20-2002") 
console.log(myTimeStemp);
console.log(myCreatedDate.getTime());
console.log(Math.floor(Date.now()/1000));


 let newDate= new Date()
 console.log(newDate.getDate());
 console.log(newDate.getDay());
 console.log(newDate.getFullYear());
 console.log(newDate.getMonth());
 console.log(newDate.getMinutes());
 console.log(newDate.getTimezoneOffset());
 console.log(newDate.getFullYear());
 
 
 
  newDate.toLocaleString('defaut',{
    weekday:"short",
    timeZone:"Asia/Karachi"
  })
  console.log(newDate);