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Express.js | app.get() Function

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  • Last Updated : 18 Jun, 2020

The app.get() function returns the value name app setting. The app.set() function is used to assigns the setting name to value. This function is used to get that values which are assigned.



Installation of express module:

  1. You can visit the link to Install express module. You can install this package by using this command.
    npm install express
  2. After installing express module, you can check your express version in command prompt using the command.
    npm version express
  3. 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

Filename: index.js

var express = require('express');
var app = express();
console.log(app.get('title')) // undefined
app.set('title', 'GeeksforGeeks')
console.log(app.get('title')) // GeeksforGeeks

Steps to run the program:

  1. The project structure will look like this:
  2. Make sure you have installed express module using the following command:
    npm install express
  3. Run index.js file using below command:
    node index.js


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