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JavaScript Number toPrecision() Method

JavaScript Number toPrecision() Method with example, javascript math methods, abs() method, round() method, ceil() method, floor() method, pow() method, random() method, sqrt() method, max() method, min() method, log() method, sin() method, cos() method, tan() method etc.

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JavaScript Number toPrecision() method

The JavaScript number toPrecision() method returns the string representing a number of specified precision.

Syntax

The toPrecision() method is represented by the following syntax:

Number.toPrecision(digits)

Parameter

digits - It is optional. It represent the digits up to which the number must precise.

Return

A string that represents a number with exact digits after a decimal point

JavaScript Number toPrecision() method example

Here, we will understand toPrecision() method through various examples.

Example 1

Let's see a simple example of toPrecision() method.

<script>
var a=98.9721;
document.writeln(a.toPrecision());
</script>

Output:

Example 2

Let's see an example to fix a number up to given decimal point.

<script>
var a=98.9721;
document.writeln(a.toPrecision(2));
</script>

Output:

98.97

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