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Bootstrap vs. AngularJS in 2022

Bootstrap and AngularJS have emerged as the front-runners in the industry for the finest frontend framework for application development. The architecture, components, development style, testing, code maintainability, and even the learning curve of these frameworks are very different. 

So, let’s look at the difference between Bootstrap vs. AngularJS.  

What Is Bootstrap?

Frontend CSS framework Bootstrap, often known as Twitter Bootstrap, builds mobile-first websites. In addition to the frontend framework template, different HTML templates and JavaScript components like jQuery may be used.

Because of its responsive design templates, frameworks, grids, and most significantly, multi-site compatibility, it has grown to be the second most popular UI development framework.

What Is AngularJS?

Web applications may be built with the aid of the AngularJS typescript-based Javascript framework. It’s a frontend framework that doesn’t slow down the size or performance of the application since it has built-in tools and libraries. 

Its reusable code can be utilized for any deployment target gives development chances across all platforms. Furthermore, at the object or property level, it features dynamic UI binding and a two-way data binding that is intrinsic to its design.

Speed Comparison

Bootstrap is well-known for the simplicity with which it makes it easy to create websites and online apps, but it may be problematic when it comes to performance. Because of the framework’s extensive library and untapped potential, developers have often criticized it.  

It’s also important to note that it provides customization options to improve efficiency, even if the app is content-heavy. AngularJS has shown itself as a better framework for high-performance applications. 

Ivy renderer, a redesign of AngularJS’s rendering engine, powers the framework. It claims to minimize the time it takes to create apps by compiling components and making them super-fast and small.

Application Design

A model-view-controller architecture may be characterized by Bootstrap’s two-component structure, including the logic layer and the view layer. While the view-controller provides the structure for all visual components, the views component concentrates on the visual displays. 

This layer has six modules, whereas the logic layer contains twelve components that offer specific visual assistance capabilities. AngularJS’s model-view-controller design pattern separates the application’s functionality from the presentation layer, making it easy to maintain a clear line between the two. 

Compared to other web frameworks, AngularJS does not rely on weak event listeners and handlers to enable two-way data binding. Because the framework separates business logic from UI components, developers can create a beautiful user experience while still ensuring that the business logic works as intended.


External plugins and tools compatible with Bootstrap may be used to conduct tests on applications and websites built using Bootstrap. One of the framework’s advantages is that it eliminates cross-browser issues because of its single reusable component that doesn’t need repetition.

All JavaScript code in AngularJS must pass a set of tests as an intrinsic element of the framework. Using testing, we can create a new project from the start and test each component as we go.


Bootstrap is a mobile-first programming framework that can be used to create scalable websites and apps. A user’s browser, application, or screen size may all be considered when creating responsive website content using Bootstrap. 

The framework’s single global code eliminates cross-browser flaws and compatibility difficulties, making it a popular choice among developers.

In addition to Google and other well-known organizations, AngularJS is a full framework capable of creating enterprise-level apps. Because of its command-line interface and feature designs, the framework is scalable.


Security flaws are frequent in frontend frameworks, and Bootstrap is no exception. The data-target property is the most common entry point for XSS vulnerabilities, and developers have noted this risk even in upgraded versions. 

Tooltip and popover data-temple attributes, affix configuration target properties, tooltip data-viewport attributes, tooltip data container attributes, tooltip data-target attributes, and scroll spy data-target attributes are all common places where vulnerabilities may be exploited.

AngularJS defaults to treating every value as untrustworthy since it can’t be certain that an attacker won’t inject malicious code via a property, attribute, or other supplied value. A built-in sanitizer, DomSanitizer, has been added to the framework to protect the user-generated material.  

Maximum Size of an App

The size of a Bootstrap application depends on the content used to create and show it. A full-featured Bootstrap application’s minimal JavaScript and CSS file sizes are 49 KB and 137 KB, respectively. The library packages’ unneeded components, which may bulk up an app regardless of the app’s minimal size, must be considered by developers.  

AngularJS apps are well-known for being massive, enterprise-scale applications; therefore, their size may exceed expectations. Medium-sized AngularJS apps typically weigh between 250 KB and less than 500 KB, making them smaller than competing frontend frameworks and smaller applications. When the size of a bundle exceeds such numbers, it is necessary to use a compiler for compressing the bundle. 

Learning Curve 

Bootstrap is an excellent framework for web developers. Developers familiar with the fundamentals of HTML and CSS may find it a bit challenging to get up to speed with.  

The effort would be easier if one had a working knowledge of CSS classes and Bootstrap components. The approach to designing mobile-centric apps is completely different from previous frameworks; therefore, developers may have to adjust to the new way of working. 

AngularJS has a higher learning curve since it is a large and dynamic frontend framework. Initially, it may be difficult for developers to cover a wide range of subjects, but it is worth the effort to have a deeper grasp of the workarounds. Developers must be comfortable with Javascript and a few other programming fundamentals to work well with the framework. 


Using Bootstrap can help you design a mobile-first application that is responsive and easy to use, whereas AngularJS is a good choice if you want to build large-scale corporate software without having to worry about its size.

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