JavaScript wrapper around values that can be observed

This package allows you to observe changes made on values.

Installation

npm i @stein197/value

Usage

The package includes only single class Value:

import Value from "@stein197/value";

const v = new Value(12);
v.on((oldValue, newValue) => console.log(oldValue, newValue)); // Adding an event listener. The callback takes two arguments - the old value and the new one
v.get(); // 12
v.set(12); // Does not fire an event because the new value is the same as the old one
v.set(24);
> 12 24

NPM scripts

• clean cleans working directory from compiled files
• ts compiles source code
• test runs unit tests
• build all the previous scripts combined