'Purgecss is not a constructor' when following the JS API examples

Hi,

I’m trying to follow the ES5 JS API examples but it looks like something is going wrong with the export as I’m getting a TypeError: Purgecss is not a constructor error. I think it’s probably something I’m doing wrong rather than a problem with the docs, but I’m not 100% sure.

This is my output from trying to run purgeCss.js with node v8.6.0.

/usr/local/bin/node /Users/name/Sites/project/core/www/sites/all/themes/custom/project_theme/purgeCss.js

/Users/name/SItes/project/aman/core/www/sites/all/themes/custom/project_theme/purgeCss.js:2
var purgecss = new Purgecss({
               ^

TypeError: Purgecss is not a constructor
    at Object.<anonymous> (/Users/name/Sites/project/core/www/sites/all/themes/custom/project_theme/purgeCss.js:2:16)
    at Module._compile (module.js:624:30)
    at Object.Module._extensions..js (module.js:635:10)
    at Module.load (module.js:545:32)
    at tryModuleLoad (module.js:508:12)
    at Function.Module._load (module.js:500:3)
    at Function.Module.runMain (module.js:665:10)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:607:3

Process finished with exit code 1

[Ffloriel]

If you are using the latest version, the API changed a bit.

import PurgeCSS from 'purgecss'
const purgeCSSResults = await new Purgecss().purge({
  content: ['**/*.html'],
  css: ['**/*.css']
})

If you are using with require, you should be able to import it like this:

const { PurgeCSS } = require("purgecss");

[philwolstenholme]

Thanks for all your work on Purgecss @Ffloriel 😃 I’ve been using it for project at home for a while, and today I set it up on a project at work too.