Top LESS Interview Questions and Answers (2024)

1. What is Less?

Less Stands for Leaner CSS is a dynamic style sheet and an open-source language that runs on both the client and server sides. It is a cross-browser compatible and backwards-compatible language that can be compiled into a Cascading style sheet. Less is object-oriented and helps write CSS Simple.

2. Who is the inventor of Less?

The Less was designed and developed by Dmitry Fadeyev and Alexis Sellier.

3. What are the features of LESS?

• Less makes code eazy to read and cleaner
• Less code is written in an organized way
• Less solves the problem of redundancy in code
• Less is a superset of CSS and is a complete language of Javascript
• Less improves the working power of CSS
• Less is a dynamic style sheet that provides the functionalities such as variables, functions and operations.

4. What are the advantages of LESS?

• Working with media queries
• Popular among web designers

5. What are the disadvantages of LESS?

• It takes a long time to learn if you are new to CSS
• Lesser Framework compared to SAAS
• It is time to test or reuse dependent modules. Coz LESS has tight coupling between the modules.

6. What is the difference between SAAS and LESS?

SAAS:

• To assign a variable, SASS uses the symbol '$'.
• Popular Frameworks of Libraries: Bourbon, Compass, Gumby
• It is an extension of CSS; it helps to reduce the time
• It is open source
• SAAS can report errors in Syntax
• SAAS is coded in Ruby

LESS:

• To assign a variable LESS, use the symbol '@'.
• Popular Frameworks of Libraries: Less Elements, 3L, LESSHat
• Dynamic language can be used on different browsers
• It helps reduce redundancy
• It explains the correct location where the error has occurred
• Less is coded in Javascript

7. What are the different ways that LESS can be used?

There are three different ways to use Less:

• Download less as a script file for the browser
• Through a third-party app
• Through command line

8. What are the different types of functions available in Less?

• String functions
• Misc function    
• List function
• Type function
• Math function    
• Colour channel function
• Colour definition function
• Colour blending functions
• Colour operation