Explain React JS routing (Hindi Speaking)

Hello, How are you? *****I am a Bootstrap,React.js expert*****. I have rich experience for 5+ years. My main skill is to create user-friendly UI and fast, high-quality backend, and fast fix issues. I had worked on several website and APP developments for domestic and foreign companies. As a top developer, I promise a brilliant service for you. I can complete the project at the desired level perfectly. And I'm always ready for you. I will wait for your response and hope for a long term relationship with you. Thank you. Pavel.