setState is not a function
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Uncaught SyntaxError: Unexpected Identifier
Uncaught SyntaxError: Unexpected Identifier
Introduction:
The “Uncaught SyntaxError: Unexpected Identifier” occurs when JavaScript encounters an unexpected token, often due to misspelled variable names or missing punctuation. This error stops code execution, so it’s essential for developers to identify and fix it.
Common Scenarios for "Unexpected Identifier"
The Problem:
This error occurs when the JavaScript parser encounters an identifier it wasn’t expecting. This could happen when a variable or function name is used in the wrong place or when a keyword is incorrectly used as a variable name. For example:
let let = 5; // SyntaxError: Unexpected identifier
Here, let is a reserved keyword in JavaScript and cannot be used as a variable name.
The Solution:
To fix this error, ensure you’re not using reserved words or improper identifiers in your code. In this case, simply change the variable name to something else:
let myVar = 5; // Corrected code
Always check the JavaScript documentation to avoid using reserved keywords as variable names.
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