Values loaded from config.json will override defaults or the file will be created if not found.
const config = require('confjson')({
k1: [ 'hello' ]
}, 'config/config.json')
const config = require('confjson')()
Alter the (global) config to make test conditions
const config = require('confjson)({
k1: 'world',
k2: []
})