What are TypeScript and Cypress?

It is possible to go straight to installing and coding but it is worth knowing at least something about TypeScript and Cypress. This article will consist of a short description of both tools.


TypeScript is a programming language that is a superset of JavaScript. It uses all JS functionalities and adds many features, the most important are:

  • Static typing
  • Optional function variables
  • Interfaces
  • Enums

Before running, TypeScript code is translated to JavaScript, therefore all JS is valid within TS code. It is worth mentioning that this programming language is developed and maintained by Microsoft.

Advantages of TypeScript

The First advantage is that TS simplifies many things of JS. The code is more readable and there are tools that help writing more compact code. TypeScript provides real-time error checking, that means a programmer can spot errors while compiling – not only in runtime. Typing allows avoiding problems with data of invalid type be thrown into function. What more about types – the author can define custom types that will ensure data validity. Thanks to TS, the programmer can create custom Cypress methods, that can be chained with built-in Cypress ones. This course will not get deep into this language, but with included examples, you will be able to forge your own tests. It is recommended to learn TypeScript anyway.


Cypress is free all in one environment for test automation that uses only JavaScript language (TypeScript is JavaScript at runtime). It provides tools for complex end-to-end testing. There are lots of tools for FE testing, and it is fairly simple to include your own BE methods, so all testing can be maintained together. Cypress runs tests in its own test runner within a web browser so tests are performed faster and debugging is made much simpler than ever as this tool shows what exactly and when failed.

Advantages of Cypress

Comparing to Selenium, Cypress is like a fresh breeze addressing many of Selenium’s problems, but it is not perfect. Initially, Cypress was limited only to run in Google Chrome web browser. As for today, it supports Chrome, Firefox, Edge, Electron, and Brave web browsers. It does not get this popular without a reason, documentation is very well forged and the community around Cypress is growing each day. In this course, the nuances that are required to create full-fledged test automation will be covered. Now let’s get into setting up TypeScript and Cypress!