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detect-node-es

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detect-node-es

Detect Node.JS (as opposite to browser environment). ESM modification


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Maintainers
1
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5,228,701
decreased by-9.28%

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Source

detect-node

This is a fork of detect-node.

Differences:

  • uses named export {isNode}
  • has d.ts integrated
  • supports ESM

Install

npm install --save detect-node-es

Usage:

-var isNode = require('detect-node');
+var {isNode} = require('detect-node-es');

if (isNode) {
  console.log("Running under Node.JS");
} else {
  alert("Hello from browser (or whatever not-a-node env)");
}

The check is performed as:

module.exports = false;

// Only Node.JS has a process variable that is of [[Class]] process
try {
 module.exports = Object.prototype.toString.call(global.process) === '[object process]' 
} catch(e) {}

Thanks to Ingvar Stepanyan for the initial idea. This check is both the most reliable I could find and it does not use process env directly, which would cause browserify to include it into the build.

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Last updated on 18 Mar 2021

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