Question

Write a JavaScript program to convert the amount of US dollars to Indian Rupees. The user will input the amount of US dollars and use the following forμla to perform the conversion:

The forμla for converting US dollars to Indian Rupees is given as:
(textINR = textUSD × textConversion Rate), where the Conversion Rate is the current exchange rate between USD and INR.

Which of the following JavaScript code snippets correctly performs the conversion of the amount entered by the user from US dollars to Indian Rupees?

- A)
```javascript
function convertToINR(usdAmount, conversionRate)
return usdAmount * conversionRate;

```

- B)
```javascript
function convertToINR(usdAmount)
const conversionRate = 75; // Example conversion rate
return usdAmount * conversionRate;

```

- C)
```javascript
let usdAmount = prompt("Enter the amount in USD:");
const conversionRate = 75; // Example conversion rate
let inrAmount = usdAmount * conversionRate;
console.log(`The equivalent amount in INR is: $inrAmount`);
```

- D)
```javascript
const conversionRate = 75; // Example conversion rate
function convertToINR(usdAmount)
return usdAmount * conversionRate;

```

Answer 1

Option B is the correct JavaScript code snippet to convert the amount of US dollars to Indian Rupees. It defines the necessary function and uses the provided conversion rate to perform the conversion.

The correct JavaScript code snippet to convert the amount of US dollars to Indian Rupees is option B. Here is the explanation:

1. Option A is missing the opening and closing curly braces for the function and will result in a syntax error.
2. Option B defines the function convertToINR that takes the parameter usdAmount. It then declares a constant variable conversionRate and assigns it a value of 75. This is the current exchange rate between USD and INR mentioned in the question. The function multiplies the usdAmount by the conversionRate and returns the result.
3. Option C is incorrect because it uses the prompt function to ask the user for the usdAmount input, and it also calculates the inrAmount and logs it to the console. However, it does not define a function to perform the conversion as required by the question.
4. Option D is similar to option B in terms of functionality, but it does not use a parameter for the usdAmount input. It is also missing the opening and closing curly braces for the function, resulting in a syntax error.