agentsqripts/lib/utils/path-utils/get/getPathExtension.js

Comprehensive static code analysis toolkit for identifying technical debt, security vulnerabilities, performance issues, and code quality problems

/**
 * @file File extension extraction utility
 * @description Single responsibility: Extract file extension from file paths
 */

const path = require('path');

/**
 * Get the file extension from a path
 * @param {string} filePath - The file path
 * @returns {string} File extension including the dot (e.g., '.js', '.ts')
 */
function getPathExtension(filePath) {
  if (typeof filePath !== 'string') {
    throw new TypeError('File path must be a string');
  }
  
  return path.extname(filePath);
}

module.exports = getPathExtension;