how to write answer in javascript to a fixed decimal number

Vishal Basumatary -

How to Write Answer in JavaScript to a Fixed Decimal Number

If you want to write an answer in JavaScript to a fixed decimal number, there are a few ways to do it. One way is to use the toFixed() method. This method will return a string that represents the number with the specified number of decimal places.

Syntax

number.toFixed(digits)

Where:

  • number: The number you want to format.
  • digits: The number of digits after the decimal point. This is an optional parameter. If omitted, it defaults to 0.

Here's an example:

const num = 123.456789;
const formattedNum = num.toFixed(2);

console.log(formattedNum); // Output: "123.46"

In this example, we have a number 123.456789. We call the toFixed() method with 2 as the argument, which means we want to format the number with two decimal places. The method returns a string "123.46", which we assign to the formattedNum variable.

Another way to format a number to a fixed decimal point is by using the Number() constructor, which will convert the string to a number with the specified number of decimal places. Here's how you can use it:

const num = 123.456789;
const formattedNum = Number(num.toFixed(2));

console.log(formattedNum); // Output: 123.46

In this example, we use the same number 123.456789, but instead of returning a string, we convert it back to a number using the Number() constructor. The toFixed() method is used to format the number to two decimal places, and then the resulting string is converted back to a number using Number().

Both methods work the same way, so use whichever one you're more comfortable with.