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69 Posts
  • Edited Tutorial

    How To Install and Configure Zabbix to Securely Monitor Remote Servers on Ubuntu 20.04

    Zabbix is open-source monitoring software for networks and applications. In this tutorial, you will configure a Zabbix-based monitoring system on two Ubuntu 20.04 machines. One will be configured as the server, and th...
    By Vadym Kalsin Ubuntu 20.04 MySQL Nginx Monitoring Open Source
  • Edited Tutorial in Series: How To Code in React.js

    How To Manage State on React Class Components

    In React, state refers to a structure that keeps track of how data changes over time in your application. Managing state is a crucial skill in React because it allows you to make interactive web applications. In this ...
    By Joe Morgan React JavaScript Development
  • Edited Tutorial in Series: How To Code in JavaScript

    Understanding Template Literals in JavaScript

    The 2015 edition of the ECMAScript specification (ES6) added template literals to the JavaScript language. Template literals are a new form of making strings in JavaScript that add a lot of powerful new capabilities, ...
    By Tania Rascia JavaScript Development
  • Edited Tutorial in Series: How To Code in Node.js

    How To Debug Node.js with the Built-In Debugger and Chrome DevTools

    In this article, you will use a debugger to debug some sample Node.js applications. You will first debug code using the built-in Node.js debugger tool, setting up watchers and breakpoints so you can find the root caus...
    By Stack Abuse Node.js Development JavaScript
  • Edited Tutorial in Series: How To Code in React.js

    How To Style React Components

    In this tutorial, you'll learn three different ways to style React components: plain Cascading Style Sheets (CSS), inline styles with JavaScript-style objects, and JSS, a library for creating CSS with JavaScript. To i...
    By Joe Morgan React JavaScript Development
  • Edited Tutorial

    How To Install and Use TimescaleDB on Ubuntu 20.04

    TimescaleDB is an open-source database optimized for storing time-series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By ...
    By Vadym Kalsin PostgreSQL Databases Open Source
  • Edited Tutorial in Series: How To Code in Node.js

    Using Event Emitters in Node.js

    Event emitters are objects in Node.js that trigger an event by sending a message to signal that an action was completed. In this article, you will create an event listener for a TicketManager JavaScript class that all...
    By Stack Abuse JavaScript Node.js Development
  • Edited Tutorial

    How To Install and Secure Grafana on Ubuntu 20.04

    Grafana is an open-source data visualization and monitoring tool that integrates with complex data sources like Prometheus and ElasticSearch. Grafana lets you create alerts, notifications, and ad-hoc filters for your ...
    By Vadym Kalsin Monitoring Open Source Data Analysis Ubuntu 20.04
  • Edited Tutorial in Series: How To Code in React.js

    How To Create Wrapper Components in React with Props

    In this tutorial, you'll create wrapper components with props using the React JavaScript library. Wrapper components are components that provide a default structure to display the child components. This pattern is use...
    By Joe Morgan Development JavaScript React
  • Edited Tutorial

    How To Use Traefik 1.7.21 as a Reverse Proxy for Docker Containers on CentOS 7

    In this CentOS 7 tutorial, you'll learn how to run multiple web applications on the same Docker host using the reverse proxy Traefik to route requests to separate containers and review container health on a monitoring...
    By Keith Thompson Docker Let's Encrypt Monitoring CentOS Open Source
  • Edited Tutorial in Series: How To Code in JavaScript

    Understanding Destructuring, Rest Parameters, and Spread Syntax in JavaScript

    Introduced in ECMAScript 2015 (ES6), destructuring, rest parameters, and spread syntax provide more direct ways of accessing the members of an array or an object, and can make working with data structures quicker and ...
    By Tania Rascia JavaScript Development
  • Edited Tutorial in Series: How To Code in React.js

    How To Customize React Components with Props

    Props are arguments that you provide to a JSX element in a React application. They look like standard HTML props, but they aren't predefined and can have many different JavaScript data types, including numbers, string...
    By Joe Morgan React JavaScript Development Programming Project
  • Edited Tutorial in Series: How To Code in Node.js

    Using Buffers in Node.js

    A buffer is a space in memory (typically RAM) that stores binary data. In Node.js, we can access these spaces of memory with the built-in Buffer class. Buffers are useful when using JavaScript to interacting with bina...
    By Stack Abuse Development Node.js JavaScript Networking
  • Edited Tutorial

    How To Install Drupal with Docker Compose

    Drupal is a content management system (CMS) written in PHP and distributed under the open-source GNU General Public License. Drupal requires the LAMP (Linux, Apache, MySQL, and PHP) or LEMP (Linux, Nginx, MySQL, and ...
    By Ankit Jain Drupal LEMP CMS Docker Ubuntu 18.04 Open Source MySQL Nginx
  • Edited Tutorial in Series: How To Code in React.js

    How To Create Custom Components in React

    Custom components are independent pieces of functionality that you can reuse in your code, and are the building blocks of all applications built on the React framework. Often, they can be simple JavaScript functions a...
    By Joe Morgan React Development Programming Project JavaScript
  • Edited Tutorial in Series: How To Code in React.js

    How To Create React Elements with JSX

    JSX is an abstraction that allows you to write HTML-like syntax in your JavaScript code and will enable you to build React components that look like standard HTML markup. Since you are also writing JavaScript, you’ll ...
    By Joe Morgan React Development Programming Project JavaScript
  • Edited Tutorial in Series: How To Code in Node.js

    How To Create a Web Server in Node.js with the HTTP Module

    Node.js allows developers to use JavaScript to write back-end code, even though traditionally it was used in the browser to write front-end code. Having both the frontend and backend together like this reduces the eff...
    By Stack Abuse Node.js Development Programming Project JavaScript
  • Edited Tutorial in Series: How To Code in JavaScript

    Understanding Default Parameters in JavaScript

    In ECMAScript 2015, default function parameters were introduced to the JavaScript programming language. These allow developers to initialize a function with default values if the arguments are not supplied to the func...
    By Tania Rascia Development JavaScript
  • Edited Tutorial in Series: How To Code in React.js

    How To Set Up a React Project with Create React App

    Starting a new JavaScript project with React used to be a complicated process. But now, Create React App includes all the JavaScript packages you need to run a React project, including code transpiling, basic linting,...
    By Joe Morgan React Development JavaScript
  • Edited Tutorial

    How To Create a URL Shortener with Django and GraphQL

    GraphQL is an API standard created and open-sourced by Facebook as an alternative to REST APIs. It exposes a single endpoint for all communication instead of multiple URLs for different resources and solves the overfe...
    By Jonatas Baldin Development Django Python Python Frameworks Programming Project