Multiplication Table

Program to print multiplication table

BeginnerTopic: Loop Programs

JavaScript Multiplication Table Program

This program helps you to learn the fundamental structure and syntax of JavaScript programming.

// Method 1: Using for loop
let number = 5;
console.log("Multiplication table of", number + ":");

for (let i = 1; i <= 10; i++) {
    console.log(number + " × " + i + " = " + (number * i));
}

// Method 2: Using template literals
let num = 7;
console.log("\nMultiplication table of " + num + ":");

for (let i = 1; i <= 10; i++) {
    console.log(`${num} × ${i} = ${num * i}`);
}

// Method 3: Using while loop
let n = 9;
let counter = 1;
console.log("\nMultiplication table of " + n + ":");

while (counter <= 10) {
    console.log(n + " × " + counter + " = " + (n * counter));
    counter++;
}

// Method 4: Function to generate table
function multiplicationTable(number, limit = 10) {
    console.log(`Multiplication table of ${number}:`);
    for (let i = 1; i <= limit; i++) {
        console.log(`${number} × ${i} = ${number * i}`);
    }
}

multiplicationTable(6);

Output

Multiplication table of 5:
5 × 1 = 5
5 × 2 = 10
5 × 3 = 15
5 × 4 = 20
5 × 5 = 25
5 × 6 = 30
5 × 7 = 35
5 × 8 = 40
5 × 9 = 45
5 × 10 = 50

Multiplication table of 7:
7 × 1 = 7
7 × 2 = 14
7 × 3 = 21
7 × 4 = 28
7 × 5 = 35
7 × 6 = 42
7 × 7 = 49
7 × 8 = 56
7 × 9 = 63
7 × 10 = 70

Multiplication table of 9:
9 × 1 = 9
9 × 2 = 18
9 × 3 = 27
9 × 4 = 36
9 × 5 = 45
9 × 6 = 54
9 × 7 = 63
9 × 8 = 72
9 × 9 = 81
9 × 10 = 90

Multiplication table of 6:
6 × 1 = 6
6 × 2 = 12
6 × 3 = 18
6 × 4 = 24
6 × 5 = 30
6 × 6 = 36
6 × 7 = 42
6 × 8 = 48
6 × 9 = 54
6 × 10 = 60

Understanding Multiplication Table

This program demonstrates different loop types to generate multiplication tables.

For Loop

Most common loop structure:

for (initialization; condition; increment) {
}

    // code to execute

Parts of For Loop:

Initialization

: let i = 1 - runs once at start

Condition

: i <= 10 - checked before each iteration

Increment

: i++ - runs after each iteration

While Loop

Executes while condition is true:

while (condition) {
}

    // code
    // update condition

Important:

Must update counter inside loop to avoid infinite loop!

Template Literals

ES6 feature for string interpolation:

`${num} × ${i} = ${num * i}`

Benefits:

•Cleaner than concatenation

•Supports expressions

•Multi-line strings

Function with Default Parameter

function multiplicationTable(number, limit = 10) {
}

    // limit defaults to 10 if not provided

Loop Control:

•break: Exit loop immediately

•continue: Skip to next iteration

When to Use:

For loop

: Known iterations, counting

While loop

: Unknown iterations, condition-based

Function

: Reusable code

Let us now understand every line and the components of the above program.

Note: To write and run JavaScript programs, you need to set up the local environment on your computer. Refer to the complete article Setting up JavaScript Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your JavaScript programs.

Sum of n Natural Numbers