src/index.js
function get(firebaseRef) {
    return function(id, cb) {
        firebaseRef.child(id).once('value').then(function(snapshot) {
                cb(null, snapshot.val());
            },
            cb);
    };
}
function get(firebaseRef) {
    return function(id, cb) {
        firebaseRef.child(id).once('value').then(function(snapshot) {
                cb(null, snapshot.val());
            },
            cb);
    };
}
function get ( firebaseRef ) { return function ( id , cb ) { firebaseRef . child ( id ) . once ( 'value' ) . then ( function ( snapshot ) { cb ( null , snapshot . val ( ) ) ; } , cb ) ; } ; }
Given a firebase ref, will return a function that will get a single value by ID

@param {Object} firebaseRef A reference to the firebase Object
@returns {Function} The get function
Given a firebase ref will return a function that will get a single value by ID