ReactJS is a flexible and efficient JavaScript library for building user interfaces. It lets you compose complex user interface from small pieces of code called “components”. It is used as a base for developing single-page or mobile applications. Some of these exercises include:

  • List of 5 countries - When user selects a country, its capital should be printed
  • HTML page which take multi-line text, shows the number of characters, words, lines
  • Sentences in uppercase
  • Merge sentences
  • A web application that takes name and age from an HTML page and validates age

And many more....