Common JavaScript Errors and How to Fix Them
Browse all documented JavaScript errors with detailed explanations, root causes, and step-by-step fixes.
SyntaxError: Unexpected token 'let' in JSON at position 1
This error occurs when the JavaScript interpreter encounters a syntax that is not valid JSON. In this case, it's due to …
Unexpected token 'class' in JSON at position 0
This error occurs when the JavaScript interpreter is expecting a JSON object but encounters a class definition instead, …
Uncaught Error: Template is not defined: Error in rendering template "main" at p
This error occurs when the Handlebars template engine is unable to find or load a required template, causing the applica…
Uncaught SyntaxError: Invalid or unexpected token at the end of the script
A syntax error that occurs when there is a misplaced or missing bracket, parenthesis, or semicolon at the end of the Jav…
Invalid hook 'useEffect' hook invocation: Missing dependency on 'fetchData' func
This error occurs when the 'useEffect' hook is invoked without specifying its dependencies, which can lead to unexpected…
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