JavaScript Math.fround()
Syntax & Examples

Math.fround() static-method

The Math.fround() method in JavaScript returns the nearest 32-bit single-precision float representation of a given number. It is a static method of Math, meaning it is always used as Math.fround() and not as a method of a Math object created (Math is not a constructor).

Syntax of Math.fround()

The syntax of Math.fround() static-method is:

Math.fround(doubleFloat)

This fround() static-method of Math returns the nearest single precision float representation of x.

Parameters

ParameterOptional/RequiredDescription
doubleFloatrequiredA number to be converted to its nearest 32-bit single-precision float representation.

Return Type

Math.fround() returns value of type Number.


✐ Examples

1 Using Math.fround() with a positive number

In this example, we use the Math.fround() method to find the nearest 32-bit single-precision float representation of 1.5.

For example,

  1. We call Math.fround() with 1.5 as the argument.
  2. The method returns the nearest 32-bit single-precision float representation of 1.5.
  3. We log the result to the console using console.log().

JavaScript Program

console.log(Math.fround(1.5));

Output

1.5

2 Using Math.fround() with a small number

In this example, we use the Math.fround() method to find the nearest 32-bit single-precision float representation of 1.337.

For example,

  1. We call Math.fround() with 1.337 as the argument.
  2. The method returns the nearest 32-bit single-precision float representation of 1.337.
  3. We log the result to the console using console.log().

JavaScript Program

console.log(Math.fround(1.337));

Output

1.3370000123977661

3 Using Math.fround() with a large number

In this example, we use the Math.fround() method to find the nearest 32-bit single-precision float representation of 123456.789.

For example,

  1. We call Math.fround() with 123456.789 as the argument.
  2. The method returns the nearest 32-bit single-precision float representation of 123456.789.
  3. We log the result to the console using console.log().

JavaScript Program

console.log(Math.fround(123456.789));

Output

123456.7890625

Summary

In this JavaScript tutorial, we learned about fround() static-method of Math: the syntax and few working examples with output and detailed explanation for each example.