Web Developer Notes - Page 6

JavaScript

How to Detect the Operating System (OS) Using JavaScript

Last updated: 02.04.2026
Views: 500
Sometimes it is necessary to detect the user’s operating system when building web applications or websites. This can be useful for applying different CSS styles, collecting analytics data, or adapting certain features depending on the user’s environment. While there are many libraries and plugins available for OS detection, in simple cases it is вполне possible to implement this functionality with...
code

How to Install and Delete XAMPP on Linux (Ubuntu)

Last updated: 26.10.2025
Views: 422
XAMPP is a web development server build. This software is cross-platform, there are versions for Linux, Windows and Mac. The build includes Apache, PHP, MariaDB, phpMyAdmin. The project is constantly evolving. You can download XAMPP at www.apachefriends.org/download.html Installation After downloading the package, let's set the rights. [bash] sudo chmod 755 xampp-linux-*-installer.run [/...
JavaScript

Smooth Scrolling to Anchor Using JavaScript

Last updated: 06.04.2026
Views: 404
Smooth scrolling is a popular web design feature that enhances user experience by allowing seamless navigation between sections of a webpage. Instead of abrupt jumps, smooth scrolling creates a fluid transition, making interactions feel more natural and visually appealing. This technique is especially common on landing pages, where navigation links often point to different sections of the same ...
php

Caching Data to a File Using PHP

Last updated: 06.04.2026
Views: 504
Sometimes it becomes necessary to limit the number of requests to an external data source, especially when the data does not change frequently. For example, this can be useful when working with APIs that provide exchange rates, weather data, or other information that is updated only periodically. Making a request on every page load in such cases is inefficient and can slow down your application. ...
JavaScript

Ways to Create Objects in JavaScript

Last updated: 21.02.2026
Views: 327
There are several ways to create objects in JavaScript. The Object data type plays a critical role in JS. An object is an unordered set of key-value pairs. May contain other objects. 1. Literal notation [js] const someObject1 = {}; [/js] Perhaps the most common and easiest way. Let's add properties and methods [js] someObject1.name = "John"; someObject1.age = 25; someObject1.run...