Single Page Applications
Single Page Applications its uses and advantages over the traditional multipage applications
A Full Stack Web developer passionate about learning new Web dev Technologies, with knowledge about system design, UI/UX, the Internet; especially a proud neovim user.
SPAs also known as Single Page Applications are used in a lot of websites nowadays. Single Page Applications are created using various types of frameworks and libraries that make website building easier.
Previously Websites were multi-page applications i.e there were several web pages in a website. This would make the structure of the websites easier to understand but were time-consuming.
What is SPA? 🤔
SPA is a web app that uses HTML CSS and JavaScript to build the website. But unlike the traditional Multi Page structure, SPA loads the whole website once. The HTML and the CSS required for the page are loaded at once and then the JavaScript is used to dynamically change the data in the website as per the need without reloading the webpage.
This makes the whole process a lot faster as there is no need to reload the whole page to make a small change. 🤩
How are SPAs created?
Many popular tools are used to create the SPAs
React JS
React JS is one of the popular JavaScript Libraries used to create the Single Page Applications
It's used for building interactive user interfaces and web applications quickly and efficiently with significantly less code than you would with vanilla JavaScript.
React
Angular JS
AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly
Vue.js
Vue.js is a JavaScript Framework used to create User Interfaces
Vue. js is a structural, open-source JavaScript framework that is used for building UIs and single-page applications
MultiPage Vs Single Page
| Single Page Applications | Multi-Page Applications |
| Only the data necessary for the user is reloaded | The whole Web page is reloaded for a small change |
| JavaScript is used to dynamically reload the contents of the webpage | HTML, CSS, and JavaScript are again sent from the server and rendered again |
| Faster reloading Speed as only the JavaScript file is used to reload | Slower reloading speed as all the files are rendered again |
Advantages of Single Page Application
Faster Performance:
All the resources are loaded at once and only the necessary contents are changed when needed
Development Speed:
Fewer App elements need to be developed and tested.
Easy Debugging:
Developed based on popular frameworks (React, Vue.js, AngularJS) that offer their debugging tools based on Google Chrome
Offline Availability:
Even with a poor Internet connection, you can use the SPA as it has better data caching.
Uses of SPA:
Single Page Applications are useful for social media apps and for dynamic apps, where the user doesn't require extensive movement from one part to another.
Real Life uses of SPA:
Google Maps
Gmail
Airbnb
Netflix
Pinterest
Paypal
and many more websites that you visit in your daily life are Single Page Applications.
