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.

Practical Learning Notes for Multiplication Table

This JavaScript program is part of the "Loop Programs" topic and is designed to help you build real problem-solving confidence, not just memorize syntax. Start by understanding the goal of the program in plain language, then trace the logic line by line with a custom input of your own. Once you can predict the output before running the code, your understanding becomes much stronger.

A reliable practice pattern is to run the original version first, then modify only one condition or variable at a time. Observe how that single change affects control flow and output. This deliberate style helps you understand loops, conditions, and data movement much faster than copying full solutions repeatedly.

For interview preparation, explain this solution in three layers: the high-level approach, the step-by-step execution, and the time-space tradeoff. If you can teach these three layers clearly, you are ready to solve close variations of this problem under time pressure.

Sum of n Natural Numbers