DOJO Interview Questions & Answers (2025)

DOJO is a modular JavaScript library that is used for the development of cross-platform, JavaScript/Ajax-based applications. Developed by the DOJO foundation, this open-source library was first released in March 2005. The DOJO framework is licensed under the modified BSD license.

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DOJO Interview Questions Interview Preparation Guide

Practice Best Dojo Interview Questions and Answers DOJO is a modular JavaScript library that is used for the development of cross-platform, JavaScript/Ajax-based applications. Developed by the DOJO foundation, this open-source library was first released in March 2005. The DOJO framework is licensed under the modified BSD license. Finally, we have listed below the Best Dojo Interview Questions, which are very helpful for the freshers & experienced candidates. These Dojo Interview Questions and Answers are very popular and asked various times in Dojo interviews. So, practice these questions to check your final preparation for your Interview. apart from this, you can also download the  Dojo Interview Questions PDF, completely free.

Interview Tip

In DOJO Interview Questions interviews, it's important to clearly explain key concepts and demonstrate your coding skills in real-time. Practice articulating your thought process while solving problems, as interviewers value both your technical ability and how you approach challenges.

Our team has carefully curated a comprehensive collection of the top DOJO Interview Questions to help you confidently prepare, impress your interviewers, and land your dream job.

DOJO Interview Questions for Freshers

1 What is DOJO?

DOJO is a modular JavaScript library that is used for the development of cross-platform, JavaScript/Ajax-based applications. Developed by the DOJO foundation, this open-source library was first released in March 2005. The DOJO framework is licensed under the modified BSD license.

This framework has many features such as

  • widgets
  • asynchronous communication
  • packaging system
  • client & server-side data storage
  • support for the Adobe Integrated Runtime.

2 List some benefits of using Dojo?

Some of the benefits of using the DOJO framework are,

  • DOJO has support for modularity and asynchronous loaders.
  • The DOJO toolkit provides a class-like inheritance pattern using the dojo/declare.
  • DOJO allows each component to build on a set of high-quality building blocks by providing integrated infrastructure.
  • It is easy to manage large-scale UI development projects using DOJO’s package system.
  • The community of DOJO is another important factor for choosing DOJO. They are an open community and are readily able to help other members.

3 What are Dijit and DojoX?

The Dijit in the Dojo is a widget system. With this, you can build Web 2.0 GUI’s with little or no JavaScript. This widget system is layered on top of the Dojo. It can either be used declaratively or programmatically.

The DojoX can be defined as the meta-package for other packages. This contains the packages that run the gamut of the JavaScript technology.

4 What libraries supported in DOJO Framework?

The libraries supported in the Dojo framework is the dijit. It is a library that contains the user-interface modules for widgets and layouts.

5 List basic directory structure of Dojo?

The basic directory structure of the Dojo framework contains the following three points,

  • /index.html - it is the entry point for the application.
  • /app - it is the application module.
  • /app/main.js - it is the main script for the app module.

6 Enlist some limitations of Dojo Framework?

Some of the limitations of using the Dojo framework are,

  • The Dojo framework is only supported by a limited number of browsers.
  • The Dojo codes can not be hidden in the case of commercial applications.
  • The documentation of Dojo is quite narrow.
  • It requires many networks.

7 What are the components of the Dojo Framework?

The components that come with the Dojo Framework are the Base, Dijit, Dojox, and Util.

Base - Present at the kernel of the Dojo toolkit, Base is a tiny library wrapped up into a single JavaScript file.

Dijit - It is the Dojo widget system that is used to build the Web 2.0 GUI’s without heavily using the JavaScript.

Dojox - It is a meta-package for other packages, and sub-packages defined in the Dojo framework.

Util - It is the set of utilities that are developed to utilise with the Dojo toolkit.

8 Explain what is package in Dojo?

Packages in Dojo are a collection of modules. It is an array of package configuration objects. Packages have some extra-features which significantly enhances module portability and ease-of-use. A package can be installed using tools like the CPM. With a package configuration, you can specify the name, location, and the main file of the package.

9 What is the use of Widget Toolkit in Dojo?

The Dijit framework contains a set of graphical controls called the widgets. With the widgets, you can build graphical user interfaces. There are lots of widgets available in the Dojo framework to create different graphical elements.

Some of the available widgets and its uses are,

dojox.widget.AnalogGuage - It is used to display numerical data with a variety of indicators.

dojox.widget.ColorPicker - It is an HSV colour picker.

dojox.widget.Rotator - It is a widget for rotating through child nodes using transitions.

dojox.widget.Loader - It is a small experimental Ajax activity indicator.

dojox.widget.Pager - It is used to display items in a horizontal or vertical UI.

10 What are the modules in DOJO?

The modules in Dojo are written in the Asynchronous Module Definition (AMD) format and are used to make the code easier to author and debug. In simple terms, a module is a value that can be accessed by a single reference. It is used for modularizing the code that is splitting it up into logical subsets for handling specific functionality. A module is stored in the file system as a single file.

11 Enlist some Dom specific functions of Dojo?

Some of the Dom specific Dojo functions are,

Retrieval function - The retrieval can be easily done using the dojo/dom resource’s byId method.

Creation function - Creation of elements can be done using the dojo/dom-construct’s create method.

Placement - To place a node, you can use the domConstruct.place method.

Destruction - To remove the nodes, you can either use the domConstruct.destroy function or the domConstruct.empty function.

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