https://www.npmjs.com/package/pouchdb-quick-search

PouchDB Quick Search.js

var pouch = new PouchDB('mydb');
var doc = {_id : 'mydoc', title : "Guess who?", text : "It's-a me, Mario!"};

pouch.put(doc).then(function() {
				  return pouch.search({
					  query : 'mario',
					  fields : [ 'title', 'text' ],
					  include_docs : true,
					  highlighting : true
				  });
			  })
	.then(function(res) {
		console.log(res.rows[0].doc.text);	   // "It's-a me, Mario!"
		console.log(res.rows[0].highlighting); // {"text": "It's-a me, <strong>Mario</strong>!"}
	});