eslint-rule-benchmark/dist/core/utilities/get-file-extension.d.ts

Benchmark ESLint rules with detailed performance metrics for CI and plugin development

/**
 * Get the file extension from a filename.
 *
 * @param filename - The name of the file.
 * @returns The file extension or an empty string if no extension is found.
 */
export declare function getFileExtension(filename: string): string