cssstats/lib/get-specificity-graph.js

High-level stats for stylesheets

var isBlank = require('is-blank')
var isPresent = require('is-present')
var specificity = require('specificity')

module.exports = function(selectors) {
  selectors = selectors || this.values

  if (isBlank(selectors)) {
    return false
  }

  return selectors.filter(isPresent).map(graph)

  function graph(selector) {
    return specificity
      .calculate(selector)[0]
      .specificity.split(',')
      .map(function(n) {
        return parseFloat(n)
      })
      .reverse()
      .reduce(function(a, b, i, arr) {
        b = b < 10 ? b : 9
        return a + b * Math.pow(10, i)
      })
  }
}