Now that you have some grasp of React elements, we can explain React components, which are JavaScript functions or ES6 classes that accept arbitrary inputs (props) and return the React elements ...

Most JavaScript developers report earning a decent income, with 30.6% claiming to earn between $50,000 to $100,000 a year, while 20% reported earning between $100,000 and $200,000 per year.

Survey of 15,000 developers and HR managers reveals JavaScript, Java and Python as the most sought-after languages, while knowledge of React, Node.js and .NET Core are also in high demand.