# (JavaScript programming Example for Beginners)

# JavaScript Program to Find the Largest Among Three Numbers

#### In this example, you will learn to find the largest among three numbers in JavaScript.

You can find the largest among three numbers using the `if...else`

statement.

## Example 1: Largest Number Among Three Numbers

```
// program to find the largest among three numbers
// take input from the user
let num1 = parseFloat(prompt("Enter first number: "));
let num2 = parseFloat(prompt("Enter second number: "));
let num3 = parseFloat(prompt("Enter third number: "));
let largest;
// check the condition
if(num1 >= num2 && num1 >= num3) {
largest = num1;
}
else if (num2 >= num1 && num2 >= num3) {
largest = num2;
}
else {
largest = num3;
}
// display the result
console.log("The largest number is " + largest);
```

**Output**

Enter first number: -7 Enter second number: -5 Enter third number: -1 The largest number is -1

In the above program, `parseFloat()`

is used to convert numeric string to number. If the string is a floating number, `parseFloat()`

converts the string into floating point number.

The numbers are compared with one another using greater than or equal to `>=`

operator. And the `if...else if...else`

statement is used to check the condition.

Here, logical AND `&&`

is also used to check two conditions.

You can also use the JavaScript built-in `Math.max()`

function to find the largest among the numbers.

## Example2: Using Math.max()

```
// program to find the largest among three numbers
// take input from the user
let num1 = parseFloat(prompt("Enter first number: "));
let num2 = parseFloat(prompt("Enter second number: "));
let num3 = parseFloat(prompt("Enter third number: "));
let largest = Math.max(num1, num2, num3);
// display the result
console.log("The largest number is " + largest);
```

**Output**

Enter first number: 5 Enter second number: 5.5 Enter third number: 5.6 The largest number is 5.6

`Math.max()`

returns the largest number among the provided numbers.

You can use `Math.min()`

function to find the smallest among the numbers.

## JS Example for Beginners: JavaScript Program to Find the Largest Among Three Numbers

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