JavaScript | Math.fround( ) Function

While performing operations on numbers we might sometimes want to use 32-bit numbers. JavaScript internally uses 64-bit floating point numbers and not 32-bit. So checking equality of 32-bit numbers with 64-bit numbers may fail. JavaScript provides us with a built-in function to cast a 64-bit floating point number to 32-bit. The Math.fround() function in JavaScript is used to find the nearest 32-bit single-precision float representation of a given Number. Math.fround() function in JavaScript is also used to cast the 64-bit float to a 32-bit float.

Syntax:

Math.fround(value)

Parameters: This function accepts a single parameter value . This parameter represents the number for which we want to find the nearest 32-bit single precision float representation.

Return Value: The Math.fround() function returns the nearest 32-bit single precision float representation of the given number.

Below examples illustrates the Math.fround() function in JavaScript:

Example 1: When a positive number is passed as a parameter:

<script type="text/javascript">

document.write(Math.fround(3));

</script>
Output:
```
3
```
Example 2: When a positive number with decimal places is passed as a parameter:

<script type="text/javascript">

document.write(Math.fround(3.345));

</script>
Output:
```
3.3450000286102295
```
Example 3: When a negative number is passed as a parameter:

<script type="text/javascript">

document.write(Math.fround(-3));

</script>
Output:
```
-3
```
Example 4: When a negative number with decimal places is passed as a parameter:

<script type="text/javascript">

document.write(Math.fround(-3.345));

</script>
Output:
```
-3.3450000286102295
```
Example 5: When zero is passed as a parameter:

<script type="text/javascript">

document.write(Math.fround(0));

</script>
Output:
```
0
```

Supported Browsers: The browsers supported by JavaScript Math.fround( ) function are listed below:

Google Chrome
Internet Explorer
Firefox
Opera
Safari

My Personal Notes

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