Install and Require HelmetJS
The Require Function
The require function in JavaScript is used in the server-side programming environment, specifically in Node.js. It's used to include a module (i.e., a file containing code) in the current file and make its functions and variables available for use. The require function returns the exports (i.e., public interface) of the included module.
Syntax:
const module = require('module');
Example:
Suppose we have a module named math.js with the following code:
exports.add = function(a, b) {
return a + b;
};
We can include this module in another file and use the add function like this:
const math = require('./math');
console.log(math.add(1, 2));