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JavaScript Error Handling

Error in javascript​

Things don't go always well in our programs.In particular, there are situations where we may want to stop the program or inform the user if something bad happens.

An error in JavaScript is an object, which is later thrown to halt the program.To create a new error in JavaScript we call the appropriate constructor function.

For example, to create a new, generic error we can do:

const err = new Error("Something bad happened!");

When creating an error object it's also possible to omit the new keyword:

const err = Error("Something bad happened!");

Many types of errors in JavaScript​

There are many types of errors in JavaScript, namely:

  • Error
  • EvalError
  • InternalError
  • RangeError
  • ReferenceError
  • SyntaxError
  • TypeError
  • URIError

[Error Handling] (https://www.valentinog.com/blog/error/)