block-elements
Array of "block level elements" defined by the HTML specification
Exports an Array of "block level element" node names as defined by the HTML spec.
The list is programatically generated from MDN.
Usage
As an Array:
var blocks = require('block-elements')
blocks.indexOf('div') > -1 // true
As an Object:
var hash = require('block-elements/hash')
hash['div'] && hash['DIV'] // true
As a Set:
var set = require('block-elements/set')
set.has('div') && set.has('DIV') // true