NodeJS Version Checker

This module allows you to check and compare versions of NodeJS and npm.

Compatibility

The minimum supported version of Node.js is v6.

Usage

Installation

$ npm i nodejs-version-checker

Importing

const nodeJSVersionChecker = require("nodejs-version-checker");

Example

const nodeJSVersionChecker = require("nodejs-version-checker");

//Node version <=6.x.x
nodeJSVersionChecker({ node: "6.17.1", npm: "3.10.0"})
  .then((result) => {
    console.log(result);
  })
  .catch((error) => console.error(error));

//Node version >=6.x.x
(async () => {
  try {
    const result = await nodeJSVersionChecker();
    console.log(result);
  } catch (error) {
    console.error(error);
  }
})();
-----------------------------------------------------

nodeJSVersionChecker({ node: "6.17.1"})
  .then((result) => {
    console.log(result);
  })
  .catch((error) => console.error(error));

-----------------------------------------------------

nodeJSVersionChecker("6.17.1")
  .then((result) => {
    console.log(result);
  })
  .catch((error) => console.error(error));

-----------------------------------------------------

nodeJSVersionChecker()
  .then((result) => {
    console.log(result);
  })
  .catch((error) => console.error(error));

Output

{ node:
   { current: '8.17.1',
     expected: '6.17.1',
     comparison: 1,
     comparisonString: 'greater' },
  npm:
   { current: '3.5.10',
     expected: '3.10.0',
     comparison: -1,
     comparisonString: 'less' } }
-----------------------------------------------------

{ node:
   { current: '6.17.1',
     expected: '6.17.1',
     comparison: 0,
     comparisonString: 'equal' } }

-----------------------------------------------------

{ node:
   { current: '6.17.1',
     expected: '6.17.1',
     comparison: 0,
     comparisonString: 'equal' } }

-----------------------------------------------------
// Default result if no parameters is passed
{ node: { current: '6.17.1' } }

Comparison mapping

• comparison: 0: The local version is equal to the one expected
• comparison: 1: The local version is greater than the one expected
• comparison: -1: The local version is less than the one expected
• If the key does not appear, it means that a comparison parameter was not passed

License

MIT