HTML5 Interview Questions and Answers

Last updated on Feb 08, 2024
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HTML5 Interview Questions

In the past years, the adoption of HTML5 has increased in an emerging way that more and more companies are using it to deliver rich cross-platform web applications. In this article, we have tried to cover all HTML5 Interview Questions and Answers which are for both basic and advanced levels. Now the question that would come to your mind is- what is HTML5? To develop any web application mainly three components are required i.e. HTML, CSS, and Javascript where HTML is mainly used for designing the website.HTML5 is the latest version which supports all kinds of existing web pages. Every web page you visit today on the internet is written with one or another version of HTML code. HTML5 is one of the highest-paying web technologies so everyone needs to learn basic concepts about this markup language. Companies like Facebook, Amazon, Google, and Youtube have been shifted to HTML5 from Adobe’s Flash for better development. For many years, millions of developers were using this technology but since 2015 it is the most reliable and universal choice to develop web applications. To help you with the same, we have created this article which would clear all your concepts regarding HTML5.

Quick Facts About HTML5
What is HTML5? It is a MARKUP language that is mainly used for creating interfaces rather than analytical works or logical.
What is the latest version of HTML5? HTML5.2 released on December 2017
Who developed HTML5? WHATWG
When was HTML5 first released? 28 October 2014

Most Frequently Asked HTML5 Interview Questions

Here in this article, we will be listing frequently asked HTML5 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.

Q41. What is drag and drop in HTML5?

The Drag and Drop feature is primarily a part of HTML 5. It is used to grab an object and move it towards another location. In HTML 5, every element is draggable by default. Hence, there is no need for a separate function.

Q42. What is a tag in HTML5?

The <a> tag in HTML 5 is used to define a hyperlink. The <a> tag is used to link one page to another. The most vital function of the <a> element is having the href attribute, which accurately indicates the link's destination. By default, the hyperlinks will automatically appear in all browsers

Q43. What are the new attributes of form tag in HTML5?

Here is a list of the new form attributes introduced in HTML 5

  • novalidate
  • autocomplete
Q44. What is Server Sent Events?

A server-sent event is when a net page automatically receives updates from a server. This used to be additionally possible before, however, the internet web page would have to ask if any updates had been available. With server-sent events, the updates come automatically.

Q45. What is the difference between server sent events and Websockets in html5?
  • Websockets and SSE (Server-Sent Events) are each successful of pushing records to browsers, however, they are no longer competing for technologies.
  • Websockets connections can both ship statistics to the browser and acquire information from the browser. A true example of an application that ought to use WebSockets is a chat application.
  • SSE connections can solely push statistics to the browser. Online inventory prices or twitters updating timeline or feed are excellent examples of a utility that ought to benefit from SSE.
  • In exercise considering the fact that the whole lot that can be executed with SSE can also be executed with Websockets, Websockets is getting a lot greater attention and love, and many more browsers help Websockets than SSE.

Today HTML is considered as the base for all web applications, but with each passing version, many new elements and features have been added to it. So, there is a high chance that the interviewer may ask about the currently used features but as it all starts with HTML so one must learn both. To summarize-

  • Should know the difference between versions of HTML especially HTML4 and HTML5
  • When writing code, always close your HTML tags.
  • Remember HTML is a Markup language, not a programming language.
  • Work with the lists and be more familiar with HTML tables.

Features of HTML5

  • Editing content within element and "required" form attribute
  • Figure tag and SVG element
  • Web fonts
  • Transition and Animation
  • Web Icons
  • Easily implemented audio, video, map with these tags
Reviewed and verified by Umesh Singh
Umesh Singh

My name is Umesh Singh having 11+ experience in Node.JS, React JS, Angular JS, Next JS, PHP, Laravel, WordPress, MySQL, Oracle, JavaScript, HTML and CSS etc. I have worked on around 30+ projects. I lo...