Bootstrap Interview Questions and Answers

Last updated on Feb 10, 2022
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Bootstrap Interview Questions

Bootstrap is a robust, mobile-first, front-end framework that is used for creating robust websites and apps. The most significant advantage of Bootstrap is that it comes with in-built tools for creating responsive websites as well as interface components. This information is frequently asked in Bootstrap interview questions. Free for using and an open-source, its intuitive and powerful structure allows for trendier and quicker website development. Bootstrap is a potent combination of HTML and CSS templates and supports most of the JavaScript extensions.

Most Frequently Asked Bootstrap Interview Questions

Here in this article, we will be listing frequently asked Bootstrap Interview Questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q11. What are the difference between Bootstrap CSS and Bootstrap min CSS?
Answer
Q12. When we click outside of modal popup, it will close, how to resolve it?
Answer

We can resolve this problem in two ways.

1. We can add $('#myModal').modal({backdrop: 'static', keyboard: false})

OR

2.We cam add data-backdrop="static" data-keyboard="false" in <button data-target="#myModal" data-toggle="modal" data-backdrop="static" data-keyboard="false">

Q13. What is the difference between bootstrap 3 and bootstrap 4?
Answer
Q14. How to use modal popup in bootstrap?
Answer
Q15. What are the new features of bootstrap 4?
Answer
Q16. What is the latest version of Bootstrap?
Answer

The latest version of Bootstrap is Bootstrap 4.0.Version 4 released on 19th January 2018.

Q17. List the features of Bootstrap.
Answer

 

Here are some of the feature of Bootstrap

  • Bootstrap offers LESS or SASS files, and it also includes CSS files
  • Bootstrap has ready templates which support new developers in making the website.
  • Bootstrap is an open-source framework
  • Bootstrap provides grid System.
  • Bootstrap has some pre styles components like Dropdowns, Navigation Bar, Labels, and Badges, etc.
  • Bootstrap has many Javascript Plugins.
Q18. Explain the types of layouts are used in Bootstrap?
Answer

There are two types of layouts available in Bootstrap:-

  • Fluid Layout (.container-fluid):-In the Fluid layout, the width is 100 %, this layout changes its width as you are browsing content.
  • Fixed Layout (.container):- In the Fixed layout, the width is adjusted in pixels, it changes in parts (not continuous), and size will be updated at specified intervals.

Both the layouts are responsive, so any of the above two containers can be chosen to create a responsive design website.

Q19. What is a modal plugin? Explain
Answer

The modal plugin is the small window that is opened over the current page or in other words on the parent window without closing it. This small windows can be called a dialogue box or pop-up window.

If the plugin has to be added individually, then it can be written as modal.js.And when it has to be used as a bootstrap plugin, then bootstrap.js or the minified bootstrap.min.js can be used.

Q20. What is IMG responsive? Explain
Answer

Bootstrap has inbuilt classes through images can be easily styled like making the image round, circular and effects can also be given to the pictures like thumbnails. in Bootstrap beside styling and giving the effects to the images, images can be made responsive too and for doing that the class .img-responsive is added to the tag.

<img alt="Night sky" class="img-responsive" />

Using Bootstrap data APIs enable you to create advanced level interface components without writing JavaScript. Supported by most of the popular browsers, Bootstrap is easy and quick to get started even if you have basic knowledge of CSS templates and HTML. Get more knowledge on this if you are preparing for Bootstrap Interview Questions.

Development History of Bootstrap

Called initially as Twitter Blueprint, Bootstrap is the brainchild of Jacob Thornton and Mark Otto at Twitter. The team released the initial version as open-source in August 2011. We have recently updated our selection of Bootstrap interview questions and answers for experienced professionals.

Latest Version

The recent version ‎4.2.1 was released in December 2018. Read more all past version and their features if you are preparing for Bootstrap interview questions and answers.

We have an extraordinary collection of various other pages interview questions and answers pages that help to crack your front end developer interviews.

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