How to check nodejs version

Node.js is a popular server-side JavaScript runtime environment and one of the preferred tools for building web applications, servers, and command-line tools. If you have installed Node.js, you may want to know your Node.js version information. Here are several commonly used methods to check the Node.js version.

Method 1: Use the command line

Enter the following command in the terminal or command line:

node -v

This command will output your Node.js version number. For example, if your version is 10.16.3, the output is:

v10.16.3

Method 2: Using the process object

You can also get the Node.js version in your JavaScript application Information, using the process object. Add the following code to your application:

console.log(process.version);

This code will output your Node.js version information, for example:

10.16.3

Method 3: Use npm

You You can also use the npm command to view the version information of Node.js. Enter the following command in the command line or terminal:

npm version

This command will output the current Node.js version number, for example:

{ npm: '6.13.4',
  ares: '1.15.0',
  cldr: '36.0',
  http_parser: '2.8.0',
  icu: '65.1',
  modules: '64',
  napi: '4',
  nghttp2: '1.40.0',
  node: '10.16.3',
  openssl: '1.1.1d',
  tz: '2019c',
  unicode: '12.1',
  uv: '1.28.0',
  v8: '6.8.275.32-node.52',
  zlib: '1.2.11' }

Summary:

These three methods You can check the version number of Node.js and choose according to your preferences and needs. When developing Node.js applications, it is very important to keep abreast of the Node.js version information. Following the above method, you can quickly and easily view Node.js version information, allowing you to better master and develop Node.js applications.

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