Types of Errors JavaScript(JS)
In JavaScript, there are three main types of errors:
Syntax errors: These occur when you have a mistake in your code syntax that prevents it from being parsed and executed by the JavaScript engine. For example, forgetting a closing brace or semicolon can result in a syntax error.
Runtime errors: These occur when your code is syntactically correct, but something goes wrong during execution. This can happen for a variety of reasons, such as accessing a variable that is not defined or attempting to perform an operation on a value of the wrong type.
Logical errors: These occur when your code is syntactically and logically correct, but does not produce the expected result. These errors are often the hardest to debug, as the code may be functioning correctly, but the expected result may be incorrect due to a flawed algorithm or incorrect assumptions.
It is important to note that JavaScript will not halt execution of your code when an error occurs, unless the error is a syntax error. Instead, the code will continue to run until it hits the error, at which point it will stop and display an error message in the console. To catch and handle errors in your code, you can use the try...catch statement. This allows you to execute a block of code and catch any errors that occur, so that you can handle them gracefully and prevent the code from crashing.