mongo shell delete code example

Example 1: deletemany mongodb

try {
   db.orders.deleteMany( { "client" : "Crude Traders Inc." } );
} catch (e) {
   print (e);
}

Example 2: mongo delete all documents

db.bios.remove( { } )

Example 3: delete an item from db collection mongodb

db.collection.remove(
   ,
   {
     justOne: ,
     writeConcern: 
   }
)