JavaScript decode Specialist

I need help deobfuscating three JavaScript files related to web application functionality.

Requirements:
- Deobfuscate three provided JavaScript files
- Share a portion of cleaned code from one file for quality assessment

Ideal Skills and Experience:
- Proficiency in JavaScript
- Experience with code deobfuscation
- Ability to maintain code functionality post-deobfuscation
- Attention to detail and quality assurance