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
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