mine/node_modules/wildcard/examples/objects.js

var wildcard = require('..');
var testdata = {
  'a.b.c' : {},
  'a.b'   : {},
  'a'     : {},
  'a.b.d' : {}
};

console.log(wildcard('a.*.c', testdata));
// --> { 'a.b.c': {} }