Express.js | app.enable() Function

The app.enable() function is used to set the boolean value i.e. name to true. It is basically the shorthand for the app.set(name, true) or app.set(name, false). So instead we can use app.enable(name) function to set boolean values to some system Express.js settings.

Syntax:

app.enable(name)

Installation of the express module:

You can visit the link to Install the express module. You can install this package by using this command.

npm install express

After installing the express module, you can check your express version in the command prompt using the command.

npm version express

After that, you can just create a folder and add a file, for example, index.js. To run this file you need to run the following command.

node index.js

Project Structure:

Filename: index.js

javascript

const express = require('express');
const app = express();

app.enable('trust proxy')

console.log(app.get('trust proxy')) // true

Steps to run the program:

Make sure you have installed the express module using the following command:

npm install express

Run the index.js file using the below command:

node index.js

Output:

true

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