ui developers interview questions

As a UI developer, you must have effective knowledge of markup language, design principles and troubleshooting. You are responsible for the appearance of a website and how users can interact with it. If you are being interviewed for a UI developer position, you must answer questions that test your knowledge, decision-making and UI process. Preparing answers to commonly asked questions can help you organize your thoughts and boost your confidence.

Top 50 UI Developer Interview Questions & Answers for 2021

21) Create An Array In Javascript With A-List Of5 Cities, Assign That Array To The Variable, City?

var City= [New york, ‘Texas’, ‘Chicago’, ‘Hyderabad’, ‘Montreal’];

13) What is the syntax difference between a bulleted list and a numbered list?

Bulleted lists use the < ul > tag, which stands for “unordered,” whereas < ol > is used to create an ordered list.

Explore Frequency Asked Full Stack Developer Interview Questions

Q: Name at least three position property attributes.

A: Property attributes include absolute, fixed, inherit, relative, and static.

Q: What kind of skills do you think are crucial for a successful UI developer?

A: UI developers must have skills in visual design (including animation and interactive elements), prototyping platforms, copywriting, SEO, site analytics, and front-end frameworks. A good UI developer knows HTML, CSS, and—though it’s not mandatory—Photoshop.

5) What is the difference between HTML elements and tags?

HTML elements communicate to the browser how to render text. When surrounded by angular brackets <> they form HTML tags. For the most part, tags come in pairs and surround the text.

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Semantic HTML is a coding style where the tags embody what the text is meant to convey. In Semantic HTML, tags like for bold, and for italic should not be used, the reason being they just represent formatting and provide no indication of meaning or structure. The semantically correct thing to do is use these tags will have the same bold and italic effects while demonstrating meaning and structure (emphasis in this case).

More UI Developer Interview Questions for Practice

Below are a set of interview questions that may be asked to UI developer job candidates:

  • Does HTML need a compiler?
  • Explain Semantic HTML.
  • Which is the best HTML debugging tool?
  • How do you use HTML5 New tags in IE8?
  • Explain web accessibility.
  • Explain the difference between and tag.
  • Explain the difference between and tag.
  • Explain the difference between
    and

    tag.
  • Explain Meta Viewport.
  • How do you check for errors in HTML?
  • Is it possible to make the HTML Source Code not viewable?
  • How are active links different from normal links?
  • What happens if the list-style-type property is used on a non-list element like a paragraph?
  • When is it appropriate to use frames?
  • What are the new FORM elements which are available in HTML5?
  • What are the two types of Web Storage in HTML5?
  • Explain some new input types provided by HTML5 for forms.
  • Is
    tag a HTML tag?
  • What is SVG?
  • What is the difference between XHTML, HTML4 and HTML5?
  • What are the security issues with AJAX?
  • What are the differences between synchronous and asynchronous requests?
  • What is the purpose of XMLHttpRequest?
  • What is the role of a callback function in AJAX?
  • List some tools available for debugging AJAX applications.
  • What is the difference between JavaScript and AJAX?
  • What are the different ready states of a request in AJAX?
  • What are the types of postback in AJAX?
  • Explain JSON in AJAX.
  • How do you test AJAX code?
  • What is the difference between reset.css and normalize CSS?
  • What is the CSS Box Model?
  • How will you check for coding errors in CSS?
  • What is the difference between display none and visibility hidden?
  • How do you center align a div tag in CSS?
  • How do you vertically align a div in CSS?
  • Suggest three ways to reduce the load time of a page.
  • Suggest any three position-property attributes.
  • How do Angular applications work?
  • What are the differences between AngularJS and Angular?
  • What are the advantages of AOT compilations?
  • What is string interpolation in Angular?
  • Explain Promises in Angular.
  • What are floats, and how do they work?
  • Suggest three plugins present in the Bootstrap jQuery plugin library.
  • Which CSS class will you employ to span 16 columns on medium screens and 10 columns on large screens?
  • How will you verify whether a variable is set in PHP or not?
  • What’s the difference between require() and include() in errors?
  • What is a CSS reset?
  • How will you use an AJAX request?
  • How will you use HTML5 new tags in IE8?
  • How will you test website performance?
  • FAQ

    How do you interview a UI developer?

    Topics to Prepare for UI Developer Interview.

    UI Developer Interview Questions
    1. What’s the difference between a UI developer and a UX developer? …
    2. What can you do to increase page performance? …
    3. What are the effects methods used in jQuery? …
    4. List the types of filters in AngularJS. …
    5. How do you optimize a website’s assets?

    What skills should a UI developer have?

    Junior UI design interview questions
    • Why did you decide to become a UI designer? …
    • Tell me about a recent UI project that you worked on. …
    • What was your design process, and how did you validate your decisions? …
    • Can you describe an app that meets your ideal UI design, and why? …
    • How do you keep up with design trends?

    What does a UI developer need to know?

    Nine Essential Skills for UI Developers
    • HTML. You will often come across this term in the list of skills needed for a UI developer. …
    • CSS. …
    • JavaScript. …
    • Wireframing and Prototyping Skills. …
    • Visual Communication Skills. …
    • Interaction Design Skills. …
    • Coding Skills. …
    • Analytical Skills.

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