JS Packs: How to Read Errors Messages

Modified on Wed, 7 Aug at 12:51 PM

Video: JS packs - Reading error messages


Let's examine an error message:



This error message may seem intimidating at first glance, but it contains valuable information that can help us quickly identify and fix the problem.


Breaking Down the Error Message


Line Number and The Problematic Code




This first line tells us where the error occurred. It provides the file path and the line number. In this case, the error is in on line 10.



These lines show the actual code that caused the error and use a caret (^) to point to the exact location where the interpreter encountered the issue.


Error Type and Description




This part of the message provides two crucial pieces of information:

  • The type of error (SyntaxError)
  • A brief description of the problem (Unexpected token ':')


Now that we've broken down the components of the error message, let's interpret what it's telling us:

  1. The error is in line 10.
  2. The problematic line contains `return true:`.
  3. There's a syntax error; the error is that colon (:) at the end of this statement.


To fix this error, we simply need to replace the colon with a semicolon.

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