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39 interview questionsfor developers (2025)

Test your developer skills before an interview with 39 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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39 questions
Hard
8 votes1863 runs1 comment

What is the `contenteditable` attribute in HTML5?

Web developer
html5
contenteditable
Jean-marie Cléryat Dec 2, 2021
Hard
8 votes1847 runs
2 comments

What are the two methods that can be used to send data to a server in HTML5?

Web developer
html5
http
Jean-marie Cléryat Dec 1, 2021
Hard
7 votes1884 runs1 comment

What is the HTML element that is used to group related content?

Web developer
html5
tags
Jean-marie Cléryat Dec 1, 2021
Easy
7 votes1825 runs1 comment

What is the selector `nav a[href^=http://]`?

Web developer
html5
selectors
Jean-marie Cléryat Dec 1, 2021
Easy
7 votes1823 runs1 comment

How to create a navigation section in HTML5

Web developer
html
section
Jean-marie Cléryat Dec 1, 2021
Hard
6 votes1899 runs0 comment

What is the `<output>` element in HTML5?

Web developer
html5
form
Jean-marie Cléryat Dec 1, 2021
Hard
6 votes1884 runs1 comment

Calculate the vertical spacing between 2 paragraphs in HTML5

Web developer
html
css
Jean-marie Cléryat Feb 13, 2024
Easy
6 votes1866 runs1 comment

How to add a sandbox attribute to an iframe in HTML5

Web developer
iframe
sandbox
Jean-marie Cléryat Dec 1, 2021
Hard
5 votes1906 runs0 comment

How to select all images in HTML5 with CSS

Web developer
css
selectors
Jean-marie Cléryat Nov 29, 2021
Hard
5 votes1883 runs0 comment

How to add a border to an image in HTML5

Web developer
html5
javascript
Jean-marie Cléryat Dec 2, 2021
Hard
5 votes1881 runs0 comment

Write a doctype for HTML5

Web developer
html5
doctype
Jean-marie Cléryat Dec 2, 2021
Easy
5 votes1855 runs1 comment

What is the default value of the justify-content property in HTML5?

Web developer
css
flexbox
Jean-marie Cléryat Nov 29, 2021
Hard
4 votes1919 runs1 comment

What is the name of the technology that allows you to cache data and serve it offline?

Web developer
service workers
Jean-marie Cléryat Dec 1, 2021
Medium
4 votes1896 runs0 comment

What is the name of the HTML5 element that is used to display a video?

Web developer
html5
video
Jean-marie Cléryat Dec 1, 2021
Hard
4 votes1884 runs2 comments

Which statements are true regarding the image management on this web page?

Web developer
html
images
Jean-marie Cléryat Mar 28, 2023
Easy
4 votes1844 runs0 comment

Explain the difference between `<video>` and `<object>` in HTML5.

Web developer
html5
video
Jean-marie Cléryat Dec 1, 2021
Hard
3 votes1903 runs0 comment

What are the two main ways to implement real-time communication in HTML5?

Web developer
event
eventsource
Jean-marie Cléryat Dec 1, 2021
Hard
3 votes1862 runs0 comment

What are the 4 CSS properties that are required to make a div element scrollable?

Web developer
css
html
Jean-marie Cléryat Dec 1, 2021
Hard
3 votes1859 runs0 comment

What is the name of the HTML5 feature that allows you to add metadata to an element?

Web developer
html5
data-attributes
Jean-marie Cléryat Dec 2, 2021
Hard
3 votes1826 runs0 comment

Differences between SVG and Canvas

Web developer
html5
svg
canvas
Jean-marie Cléryat Dec 2, 2021