JS lib that intercepts code and delivers incorrect values
// require
const alternativeFacts = require('alternative-facts')
const af = alternativeFacts('format')
//override any method or property named format
const util = require('util');
const result = tools.format('%s:%s','foo','bar')
// result will be scrambled from "foo:bar"
af.reset()
const util2 = require('util')
const result2 = utils2.format('%s:%s','foo','bar')
// result is now "foo:bar"
af.reset()
af.init('format')
const util3 = require('util')
const result3 = utils3.format('%s:%s','foo','bar')
// scambled again