npm install invert-hashinvert-hash
===========
Computes the inverse of a hash, assuming that it is bijective.
``javascript
var invert = require("invert-hash")
console.log(invert({
'a': 1,
'b': 2,
'c': 3
}))
//Prints out:
//
// {
// 1: 'a',
// 2: 'b',
// 3: 'c'
// }
//
`
npm install invert-hash
* obj is a hash object
Returns An object whose keys are the values of obj and whose values are the keys` of object.