Course Content

  • 7. Error and debugging

Course Content

FAQs

Syntax errors are one of the most common issues when it comes to coding. They can be quite frustrating and they often get in the way of writing clean code.

It's called JSX, and it's a JavaScript syntax extension. It's best to use it alongside React to describe how the UI should look. JSX looks like a template language, but it has all of JavaScript's capabilities. React "elements" are created via JSX.

The following are the different types of syntax errors in React:

  • SyntaxError: Unexpected token< expecting ">
  • SyntaxError: Unexpected token< expecting "]
  • SyntaxError: Unexpected token< expecting ")"
  • SyntaxError: Unexpected token< expecting "{"

There are different ways to handle syntax errors in React. The most widely used methods are using the onError or onWarning lifecycle hooks, which allow you to catch the error and display a custom error message or log the error for debugging purposes.

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