title: querying mongoose letter by letter
body: <p>hello i am trying to build a search system for a social media application, where people can find users but i want it to be that if the user is typing a word, the search starts and the more word the user inputs the more the searches become better. for example if i type in p...the database shows all the users that starts with p, then if i type in a the db shows all the users that starts with pa...and so on, is there a method like that for mongoose or do i have to use the front end to make that happen..btw im using react</p>