Introduction to Bootstrap Interview Questions And Answers
Bootstrap is a CSS framework that is used for building rich web applications with minimal effort. Bootstrap is an open-source toolkit and uses HTML, CSS, and JS.
Now, if you are looking for a job that is related to Bootstrap then you need to prepare for the 2023 Bootstrap Interview Questions. It is true that every interview is different as per the different job profiles but still to clear the interview you need to have a good and clear knowledge of Bootstrap. Here, we have prepared the important Bootstrap Interview Questions and Answers which will help you get success in your interview.
Below are the 10 important Bootstrap Interview Questions and Answers that are frequently asked in an interview. these questions are divided into parts are as follows:
Part 1 – Bootstrap Interview Questions (Basic)
This first part covers basic Bootstrap Interview Questions and Answers
1. Why use Bootstrap?
Answer:
- It has the support of all the web browsers like Internet Explorer, Google Chrome, Firefox, Opera, Safari, etc.
- It is a very powerful mobile first front-end framework, Mobile-first styles are installed with a bootstrap3 framework.
- It is very easy to start as one needs to have an idea of HTML and CSS only to work with it, prior knowledge in HTML and CSS is fairly sufficient to start with Bootstrap. Bootstrap’s official site also holds good documentation.
- Bootstrap supports the build of highly reactive websites.
- The customization can be easily done with the presence of built-in components.
- Allows a various variety of templates for use.
- Bootstrap is an open-source framework.
2. Components of Bootstrap package?
Answer:
This is the basic Bootstrap Interview Questions which is asked in an interview. Following is the components of Bootstrap are as follows:
- Scaffolding: Grid System, link styles, background form the basic structure of bootstrap.
- CSS: Bootstrap withholds global CSS settings, HTML, extensible classes, and advanced grid system.
- JavaScript Plug-in: Bootstrap contains over a dozen custom jQuery plugins.
- Customize: Bootstrap’s components can be easily customized with jQuery plugins to get your very own version.
Let us move to the next Bootstrap Interview Questions And Answer.
3. Foundation vs Bootstrap, key differences?
Answer:
| Bootstrap | Foundation |
| – Numerous User interface components are supported by Bootstrap | – In Foundation UI element options are very limited in numbers |
| – Bootstraps uses pixels | – Foundation use REMs |
| – Both Desktop and mobile sites can be designed primarily with bootstrap | – Foundation encourages to design mobile first |
| – Bootstrap support LESS as its preprocessor | – Foundation support Sass and Compass as its preprocessor |
4. Explain the Bootstrap framework structure?
Answer:
Bootstrap is a responsive front-end mobile development framework. Sites can be effectively created with the grid system of the Bootstrap framework. its holds a highly responsive design and very much customizable, Mobile sites can be built on top of the Bootstrap framework using below programming entities,
- HTML5 markup
- CSS Styling
- Javascript
- Fonts
Here on mobile measurements content can be divided into 12 columns, then it can further be reduced to 6,4,3, etc. Ease of style and making define the Bootstrap buttons with default classes available for images as well.
5. What are Breadcrumbs in bootstrap?
Answer:
Breadcrumbs depict the navigational hierarchy of a site, separators in the hierarchy are automatically added by means of CSS.
Bootstrap breadcrumb used for,
- Documentation page
- Magazine
- ERP system
A breadcrumb in Bootstrap is simply an unordered list with a class of .breadcrumb.
Ex:
.breadcrumb > li + li:before {
color: #CCCCCC;
content: "/ ";
padding: 0 5px;
}Part 2 –Bootstrap Interview Questions (Advanced)
Let us now have a look at the advanced Bootstrap Interview Questions.
6. Why do we use Jumbotron in Bootstrap?
Answer:
Jumbotron is a user-attractive function of Bootstrap. it is a brilliant way to highlight the key contents of a page. the content could be a slogan or probably a headline or any other catchy element of the page. Jumbotron works by increasing the content of the landing page and also increasing the heading size of the content. In order to implement Jumbotron in a Bootstrap use:
Create a container <div> with the class of. Jumbotron
Ex: The example shows wrapping up of heading contents inside a div class Jumbotron container.
<div class="jumbotron">
<h1>Learn to Create Websites</h1>
<p>In today's world internet is the most popular way…</p>
<p><a href="#" class="btn btn-primary btn-lg">Learn more</a></p>
</div>7. Explain types of lists supported by Bootstrap?
Answer: Lists supported by Bootstrap are as following,
Definition lists − Evey list is by default introduced with a <dt> and <dd> tag ement
- <dt> : definition term
- <dd> : corresponds to the defenition of <dt>
Ordered lists − lies in a sequential order and prefixed by numerical values.
Unordered lists − styled traditionally, does not follow any specific order. bullets can be easily customized. class, list-inline can be used to hold all list items within a single line.
Let us move to the next Bootstrap Interview Questions And Answer.
8. Navigation bar in Bootstrap?
Answer:
This is the advanced Bootstrap Interview Questions which is asked in an interview. It resembles the navigation header in the top of the page, the navigation bar can be created with Nav tag. Navbars and their contents are fluid by default. The horizontal width can be scaled and controlled using Navigation containers. Navbars are concealed by default while printing.
Ex:
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</nav>9. Would you tell me something about Glyphicons and how are they written in our code?
Answer:
Glyphicons are symbols or definitive icon fonts which provide easy orientation in your web projects. they are preferably addended in buttons, form inputs, toolbars and navigation components. Glyphicons Halflings are not free to use entities and requires licensing. Bootstrap includes more than 250 glyphs from the Glyphicons Halflings set.
Ex:
<p>Search icon: <span class="glyphicon glyphicon-search"></span></p>10. Describe a Bootstrap panel , Bootstrap well and Bootstrap carousel?
Answer:
Bootstrap well: Adds a greyish rounded background around the content, it is a container class. The .well-sm class for small wells and .well-lg class for large wells allows alternate the size of the well. Default well size is normal.
Ex:
<div class="well">Basic Well</div>Bootstrap panel: There could be situations where some site contents need to be wrapped up in a box to enhance the visibility for the user. Bootstrap panels lock hands on these needs. They can be created with the .panel class and content inside the panel has a .panel-body class.
Ex :
<div class="panel panel-default">
<div class="panel-body">Look, I'm in a panel!</div>
</div>Bootstrap carousel: Adds a slider through which images, videos, and contents can be populated and sided for the users. It is a flexible, handy and responsive way to add a carousel to our site. Carousel plug-in is a component which is used for the same.
