AngularJS Vs ReactJS : Which Technology is Better for Web Development The world of Information Technology is ever-evolving. This makes the companies choose from technologies, frameworks, and platforms that are efficient, compliant, and yield the maximum output level. When it comes to web development, ReactJS and AngularJS are two of the primary options. Companies have to select among them that will suit their business needs carefully.
Table of Contents
A Glance Through Both Angular Js and React Js
Overview of AngularJS
Overview of ReactJS
React JS has one-way data binding, which requires additional gears to manage dependencies. It is suitable for single-page applications (SPAs). Here many views are updated at one time. With ReactJS, changes are done only in the requested application areas that are updated.
It can afford large lists of items in a single view presentation, which makes rendering easier. It changes the dynamic content within the scope of the view. This makes it designer-friendly. We all know it is essential to optimize the application to load the pages faster, as a millisecond delay can worsen the user experience.
This is the reason to make websites dynamic and continually changing. ReactJS is suitable for data-intensive content. Many dynamic applications and websites are developed using ReactJS. The library for ReactJS can be used to view components of AngularJS and other frameworks. So, It is flexible and can be blended with different technology stacks.
Let’s Have a Look at The Key Functional Differences in Both Angular Js and React Js.
The structure of AngularJS is based on the three layers — Model, View, and Controller — required for single-page applications. An object $scope in AngularJS is accountable for the Model part, which the controller accepts and then transformed into HTML to create the view user’s view.
AngularJS has many standard services, controllers, directives, and other components. With AngularJS, application code is broken into several files. We can create a reusable member with our order, controller, and template. We have to describe each piece of code in a separate file.
AngularJS connects Document Object Model (DOM) to Model data through the controller. Here it uses two-way data binding. In short, if the user interacts and inputs data in the field or provides a new value to the app, then the view is updated, and so is the model. Two-way data binding is the beneficial concept here as it helps us write concise code to create interactions between components (the View and the Model) in the application.
ReactJS uses one-way data binding, which means we can direct the data flow only in one direction. This makes it clear where the data was changed. Flux handles this unidirectional data flow in ReactJS. Flux controls the flow of data to the components through one control point called the dispatcher. This dispatcher receives an object and transfers it to a convenient store, which then automatically updates. Once the update is done, the view changes accordingly and directs a new action to the dispatcher. The transfer is only done in the store when it’s fully updated. This concept makes the code effective and works well with dynamic data. One-way data flow makes the code simple.
When we talk about AngularJS performance, as we know, it takes the process of two-way data binding. This mechanism can reduce the application’s performance. When the HTML values are bound with model, AngularJS generates a watcher for each binding to track changes in the DOM. Once the view gets updated, AngularJS compares the new value with the initial value. Then values that have changed and all other values that are tracked through watchers are checked.
Too many watchers created decreases the performance of the application. This performance deteriorates, even more when several values (Views) are dependent on each other. Another shortcoming is the way AngularJS works with the real DOM. In AngularJS, changes are applied in the real DOM in the browser. When the real DOM is changed, the browser has to change many internal values to represent a new DOM. This also reduces the application performance.
The architects of ReactJS introduced the feature of the virtual Document Object Model, which is regarded as one of the most significant advantages of ReactJS. Here instead of sending entirely newly created HTML to the browser, ReactJS sends the HTML only for the altered element.
This model reduces the load on the browser. This approach is efficient than what AngularJS offers. Taking the method of one-way data binding, ReactJS does not use watchers to track real DOM changes. React contributes to easily controlled application performance. But we can also create fast applications with AngularJS.
ReactJS does not have any built-in containers for dependency injection. But there are methods for dependency injection. There are several ways to inject dependencies automatically in a ReactJS application. There are tools present to do that. The only need is to pick a tool to use.
Directives and Templates:
Directives in AngularJS organizes code around the DOM. With AngularJS, DOM can be accessed only through directives. Directives are created in AngularJS to insert data into templates. The template should have an element with a directive written as an attribute. We can use both standard and specific directives to bind DOM elements with AngularJS applications.
ReactJS does not create separate templates and directives or template logic. The template logic is written in the template itself. This inclusive template and logic approach is better as it requires less time to understand what is happening.