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round ​

Rounds a number to a specified precision.

This function takes a number and an optional precision value, and returns the number rounded to the specified number of decimal places.

Signature ​

typescript
function round(value: number, precision?: number): number;

Parameters ​

  • value (number): The number to round.
  • precision (number, optional): The number of decimal places to round to. Defaults to 0.

Returns ​

(number): The rounded number.

Examples ​

typescript
import { 
round
} from 'js-utils-es/math';
const
result1
=
round
(1.2345); // result1 will be 1
const
result2
=
round
(1.2345, 2); // result2 will be 1.23
const
result3
=
round
(1.2345, 3); // result3 will be 1.235
const
result4
=
round
(1.2345, 3.1); // This will throw an error

Source ​

Source • Docs • Test Case

Contributors ​

Changelog ​

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