Using multiple versions of the same package in a project

README.md

How to apply that

1. Install the packages (old and latest versions) adding a specific name/namespace for the latest one

npm install --save \
  feature-toggle-service@npm:feature-toggle-service@4.0.0 \
  feature-toggle-service-next@npm:feature-toggle-service@6.0.0

2. Start the code by running npm start

index.js

const { isOn, set } = require('feature-toggle-service');
const { isOn: isOnNext, set: setNext } = require('feature-toggle-service-next');

const defaultConfig = { enableFirstSection: true };
set(defaultConfig);
setNext(defaultConfig);

console.log(isOn('enableFirstSection'));
console.log(isOnNext('enableFirstSection', true));

package.json

{
  "name": "multiple-versions-of-package-in-project",
  "version": "1.0.0",
  "description": "Using multiple versions of the same package in a project",
  "main": "index.js",
  "scripts": {
    "start": "node index.js"
  },
  "keywords": [],
  "author": "Will Mendes <willmendesneto@gmail.com>",
  "license": "ISC",
  "dependencies": {
    "feature-toggle-service": "npm:feature-toggle-service@^4.0.0",
    "feature-toggle-service-next": "npm:feature-toggle-service@^6.0.0"
  }
}