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certainly! the error message "parsing error: the keyword 'const' is reserved" typically indicates that the javascript parser used by eslint has encountered a syntax error in your code where it expects valid javascript syntax but has found something else. this often occurs when the javascript version being used is not compatible with the syntax you are using.

understanding the error

the `const` keyword is a part of es6 (ecmascript 2015) and is used to declare block-scoped variables that cannot be reassigned. if you try to use `const` in an environment that doesn't support es6 or if the parser is configured to an older version of javascript (like es5), it will throw this parsing error.

common causes

1. **incorrect eslint configuration**: your eslint configuration might not be set to understand es6 syntax.
2. **older javascript version**: the target javascript version in your project might be set to a version that does not support `const`.
3. **syntax errors**: there may be a syntax error in your code that is causing the parser to get confused.

how to fix the error

step 1: check eslint configuration

make sure your eslint configuration file (usually `.eslintrc.js`, `.eslintrc.json`, or similar) is set to understand es6 syntax. you can do this by setting the `ecmaversion` property in the `parseroptions`:



step 2: update your javascript version

if you're using a tool like babel, ensure that it's set up to transpile es6 code to a version of javascript that your environment supports. if you're using node.js, ensure you're using a version that supports es6 features.

step 3: check for syntax errors

look through your code for any potential syntax errors that could be causing the parser to fail. ensure that you're using `const` correctly. here’s a simple example:

example code

here’s an example that demonstrates correct usage of `const`:



bad example leading to error

here’s an example that could lead to a parsing error due to incorrect syntax:



in the ...

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