Example3.js

let today=new Date();
console.log("Date:",today);

let students=["Deepak","Anjali","Rahul"];
students.push("Sita");
console.log(students);
students.unshift("Amit");
console.log(students);
students.splice(2,1,"Raj");
console.log(students);
students.pop("Deepak");
console.log(students);

for(let student of students){
    console.log(student);
}

console.log("While loop-Roll Numbers");
let rn=101;
while(rn<=103){
    console.log("Roll No:",rn);
    rn++;
}
console.log("Do-while loop - Hostel Floors");
let floor=1;
do{
    console.log("Hostel Floor:",floor);
    floor++;
}while(floor<=5)

console.log("Round 4.7:", Math.round(4.7));    // 5
console.log("Round 4.3:", Math.round(4.3));    // 4
console.log("Ceil 4.1:", Math.ceil(4.1));      // 5
console.log("Floor 4.9:", Math.floor(4.9));    // 4
console.log("Truncate 4.9:", Math.trunc(4.9)); // 4
console.log("Absolute of -25:", Math.abs(-25)); // 25
console.log("2^3:", Math.pow(2, 3));           // 8
console.log("Square root of 49:", Math.sqrt(49)); // 7


let studentMap=new Map();
studentMap.set("101",{name:"Deepak",dept:"CSE"});
studentMap.set("102",{name:"Anjali",dept:"ECE"});
studentMap.set("103",{name:"Rahul",dept:"MECH"});
console.log("Student 101:",studentMap.get("101"));