JavaScript | toFixed( ) Function

The toFixed() function in JavaScript 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.

Syntax:

number.toFixed( value )

The toFixed() function is used with a number as shown in above syntax using the ‘.’ operator. This function will format a number using fixed-point notation.

Parameters: This function accepts a single parameter value . It signifies the number of digits to appear after the decimal point.

Return Value: It returns a number in the string representation. The number has the exact number of digits after the decimal place as mentioned in the toFixed() function.

Example

• Using toFixed() function without any parameter: If there is no parameter specified in the toFixed() function then it doesn’t display any digits after the decimal place.

  <script type="text/javascript">     var test=213.73145;     document.write(test.toFixed());           </script>

  Output:

  214

• Using toFixed() function with a parameter: If there is a parameter specified in the toFixed() function will return a number represented as string which will have exactly that number of digits after the decimal place.

  <script type="text/javascript">     var test=213.73145;     document.write(test.toFixed(3));           </script>

  Output:

  214.731

• Using toFixed() function where the number is in exponential form: The toFixed() function can be used to convert an exponential number into a string representation with a specific number of digits after the decimal place.

  <script type="text/javascript">     var test=2.13e+15;     document.write(test.toFixed(2));           </script>

  Output:

  2130000000000000.00