is-valid-httpmethod v0.2.0

##How to use

Example :

'use strict'

const isValidHttpMethod = require ('is-valid-httpmethod')

isValidHttpMethod('GET') // => true
isValidHttpMethod('get') // => false 
isValidHttpMethod(['GET', '/home', '/index']) // => true

//Promise Mode
isValidHttpMethod('GET', true) // => Promise object with Promise_Value set to 'true'

##API

function (item[, bool]) => bool | Promise item : string | ArrayObj bool : boolean

Return true if item is a string that represents a valid http request method , like 'GET', or 'POST'. Else false.

If item is an Array object, return true if the first element is a string that represents a valid http request method, else false.

If bool is set to true (or any values that interpreted to true in an equality test), return an Promise object with a Promise_Value set to true or false, depending to the test.