What is the difference between ReferenceError and TypeError in JavaScript?

What is the difference between ReferenceError and TypeError in JavaScript?

In JavaScript, a ReferenceError occurs when you try to access a variable that hasn't been declared. A TypeError, on the other hand, happens when a value is not of the expected type, such as trying to call a non-function as a function.

Can you give me examples of each error?

Sure! A ReferenceError example would be trying to log a variable that hasn't been declared: console.log(x); This will throw a ReferenceError. A TypeError example would be trying to call a number as a function: let num = 5; num(); This will throw a TypeError.

How can I fix these errors?

To fix a ReferenceError, ensure that the variable is declared before you use it. For a TypeError, check that you're using the correct data type and that you're not trying to call non-functions.

Are there any other common JavaScript errors I should know about?

Yes, other common errors include SyntaxError, which occurs when there's a mistake in the syntax of your code, and RangeError, which happens when a value is not within the set or expected range.