Performing string operations

ReQL provides the following functions to manipulate and search strings:

• Match() takes a string or a regular expression as an input and performs a search over the field. If it matches, it returns the data in the cursor, which we can loop over to retrieve the actual data.

• For example, we have to find all the users whose name starts with J. Here is the query for the same:

      rethinkdb.table("users").filter(function(user) { 
      return user("name").match("^J"); 
      }).run(connection,function(err,cursor) { 
      if(err) { 
      throw new Error(err); 
        } 
       cursor.toArray(function(err,data) { 
       console.log(data); 
        }); 
      }); 

• Here we are first performing a filter, and inside it, we put our match() condition. The filter gives every document to the match() function and it appends it to the cursor. Upon running, you should be able to view the users with names starting with J.

• split...