ErrorOracle
javascript

ReferenceError: variable is not defined

Error message

ReferenceError: variable is not defined

What broke

The code attempted to access a variable that has not been defined in the current scope. This can happen if the variable was never declared or if there is a typo in the variable name.

Why it broke

It broke because JavaScript requires all variables to be declared before they can be used. If a variable is referenced without declaration, it results in a ReferenceError.

How to fix

To fix this error, ensure that the variable is declared before it is used. Check for any typos in the variable name and make sure it is defined in the correct scope.

Code fix

let variable = 'value';

Explained by ErrorOracle

Prevention tip

Check for any typos in the variable name and make sure it is defined in the correct scope.

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