📝Theory

What is ExtJS?

Ext JS is a JavaScript framework for building cross-platform web applications with a rich user interface. It is primarily focused on creating desktop like web applications with features like grids, charts, data visualization, and complex UI components. Ext JS is developed and maintained by Sencha, a company that specializes in web application development tools and solutions.

What is Framework?

A framework is a pre-built and structured software or conceptual foundation that provides a set of tools, libraries, and guidelines to help developers create applications, software components, or other systems easily.

• Framework advantages

  • Structure and Organize

  • Efficiency

  • Consistency

  • Reusability

  • Community and Support

  • Security

  • Scalability

  • Cost-Effectiveness

  • Flexibility

  • Quality Assurance

  • Documentation

  • Ecosystem

  • Project Management

  • Decision-Making

Which design pattern is followed by ExtJS?

• MVC (Model View Controll)

• MVVM (Model View View Model) Learn more about App Architecture

What are the difference between xtype and alias?

'xtype' is a configuration option in Ext JS used to specify the type of a component when creating instances of it. (Instances are concrete representations of components created from their classes in Ext JS, specifying their type when used.)

'alias' is used to define the relationship between the xtype and the component class.

What are listeners, handler and id?

They all are referance caller like html & css class or id calling.

Note: Maximum time you have to work some files and folders. The folder name: app, classic, resources, store etc. The file name: App.js, App.json, index.html, MainController.js, Personal.js, List.js, Application.scss