function getExtension()

in lambda/src/data-file.ts [30:35]

• 6 lines of code
• 3 McCabe index (conditional complexity)

function getExtension(objectKey: string) {
    const extension = objectKey.split('.').slice(-1)[0];
    return extension && ['json', 'yaml', 'yml'].includes(extension.toLowerCase())
        ? extension.toLowerCase()
        : null;
}