Escape mongo keys for periods and dollar signs
npm install mongo-key-escape Escape MongoDB keys for characters . and $.
$ npm install mongo-key-escape
``js
var key = require('mongo-key-escape');
key.escape('event.thing');
// event\uFF0Ething
key.unescape('event\uFF0Ething');
// 'event.thing'
key.escape('event$thing');
// event\uFF04thing
key.unescape('event\uFF04thing');
// 'event$thing'
``
MIT