How to set node_options

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How to Set node_options in Node.js

The node_options object in Node.js allows you to specify various command line options when starting your Node.js application. These options can be used to customize the behavior of the Node.js runtime environment. Here’s how you can set node_options:

  1. Create a new JavaScript file for your Node.js application, e.g., app.js.
  2. Within the app.js file, you can access the node_options object through the process global object.
  3. Use the process.env property to set the desired options. For example, to set the maximum heap size for your application, you can use process.env.NODE_OPTIONS = '--max-old-space-size=4096'. This sets the maximum heap size to 4GB (4096MB).
  4. You can also specify multiple options by separating them with spaces. For example, process.env.NODE_OPTIONS = '--max-old-space-size=4096 --trace-deprecation'.
  5. Save the changes to the app.js file.
  6. Now, when you start your Node.js application using the node command, the specified options will be applied. For example, node app.js.

Here’s a complete example:

    
const http = require('http');

process.env.NODE_OPTIONS = '--max-old-space-size=4096';

http.createServer((req, res) => {
  // Your application logic here
}).listen(3000);

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