Round a Number to Decimal Points in JavaScript
Today we decided to write a simple article on how to round a number to decimal points in JavaScript.
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Use the toFixed() method to round a number to decimal place in JavaScript. The toFixed() method is used to return a string representation of a number of digits after the decimal point.
The toFixed() method is used to format a number using fixed-point notation. It can be used to format a number with a specific number of digits to the right of the decimal.
Example 1:
1 2 3 | const number = 28.319921 const rounded_number = number.toFixed(2) // Output: 28.32 |
Here, .toFixed(2) method convert the 28.319921 number into number with only 2 decimal points.
Example 2:
1 2 3 | const number = 28 const rounded_number = number.toFixed(3) // Output: 28.000 |
The .toFixed(3) method keeping three decimals even though they’re zero.
Example 3:
Now, we will convert the number with decimal points to a rounded whole number. If we give a value of 0 to the .toFixed() method, it will round the whole number. Also If there is no parameter passed in the toFixed() method then it doesn’t display any digits after the decimal place.
1 2 3 | const number = 28.319921 const rounded_number = number.toFixed(0) // Output: 28 |
That’s it for today.
Thanks for reading and happy coding!
