Using Source Maps in Browser DevTools

console.log('before error');
// A source-mapped error for demonstration purposes
throw new Error('This is a test error');
console.log('after error');

A JavaScript snippet with an intentional error. The error is thrown to demonstrate how a source map would help locate the original code that caused the error when debugging with Browser DevTools.

//# sourceMappingURL=path/to/your/sourcemap.map

This line is typically added at the end of a minified JavaScript file to specify the path to the source map. The source map is a file that maps the minified code back to the original source code, allowing developers to debug in terms of their original source code, instead of the minified version.