JavaScript Exercise

Question 1: Create a variable "marks" and initialize it with any number. If the marks are greater than 60, then print "Pass," else print "Fail."

javascript

let marks = 59;
if (marks >= 60) {
    console.log("Pass");
} else {
    console.log("Fail");
}

//using ternary operator
marks >= 60 ? console.log("Pass") : console.log("Fail");

Question 2: Check if two numbers are odd or even. If both are odd, print "Odd," otherwise print "Even."

javascript

let num = 35;
let num2 = 34;
if (num % 2 === 1 && num2 % 2 === 1) {
    console.log("Odd");
} else {
    console.log("Even");
}

Question 3: Take four variables, "a," "b," "c," and "d," and assign their values in the given way and validate the output.

javascript

/*
a = b 
b = c
c = d
d = a*/

let a = 10;
let b = 20;
let c = 30;
let d = 40;
a = b; //a=20, b=20, c=30, d=40
b = c; //a=20, b=30, c=30, d=40
c = d; //a=20, b=30, c=40, d=40
d = a; //a=20, b=30, c=40, d=20
console.log(a, b, c, d); //20 30 40 20

Question 4: sdff

javascript

console.log(2**1);

Question 5: Take a number and check if the number is odd or not. If the number is odd, then print "Yes," else print "No."

javascript

let num = 35;
if (num % 2 === 0) {
    console.log("even");
} else {
    console.log("odd");
}

Question 6: Take a number and check if the number is divisible by 10 and 5. If it is divisible, then print "Yes," else print "No."

javascript

let num = 60;
if (num % 10 === 0 && num % 5 === 0) {
    console.log("Yes");
} else {
    console.log("No");
}

Question 7: Take a number and check if multiplying the number by 20 makes it 100 or not. If it does, then print "Yes," else print "No."

javascript

let num = 5;
if (num * 20 === 100) {
    console.log("Yes");
} else {
    console.log("No");
}

Question 8: Calculate your 10th percentage and print "Pass" or "Fail." If the marks are more than 70, then print "Pass," else print "Fail."

javascript

let marks = 880;
let totalMarks = 1000;
let percentage = (marks / totalMarks) * 100;
if (percentage > 70) {
    console.log("Pass");
} else {
    console.log("Fail");
}

Question 9: Take your age and check if your age is greater than 21. If it is, print "Adult," else print "Minor."

javascript


> console.log(2 \*\* 4);
> console.log(14 % 10);
> console.log(5 != "5");
> console.log(5 !== "5");
> console.log(10 <= 5);
> console.log(10 >= 10);

Question 10: Convert a if-else solution to ternary operator solution. So, instead of using if-else, use the ternary operator.

javascript


// if-else solution
if (condition) {
    // code block for true condition
} else {
    // code block for false condition
}

// ternary operator solution
condition ? trueBlock : falseBlock;