countDecimals

Counts the number of decimal places in a number. It accepts a value of type number and returns an integer value, indicating the number of decimal places -- 0 for whole numbers. In case of an error it returns undefined or throws an exception.

Installation

NPM

npm install count-decimals

Import

Node

import { countDecimals } from "count-decimals";

Examples

countDecimals(123); // returns 0
countDecimals(1.23); // returns 2
countDecimals(1.23e7); // returns 0
countDecimals(1.23e-7); // returns 9
countDecimals(123.456e-3); // returns 6