mongodb queries both with AND and OR

Question

can I use combination of OR and AND in mongodb queries?

the code below doesn\'t work as expected

db.things.find({
           $and:[
                {         


        

Answer 1

Shorter to use an implicit AND operation:

db.things.find({
    $or : [ 
        {"first_name": "john"},
        {"last_name": "john"}
    ],
    "phone": "12345678"         
})