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var Middleware = function() {};

Middleware.prototype.use = function(fn) {
  var self = this;

  this.go = (function(stack) {
    return function(next) {
      stack.call(self, function() {
        fn.call(self, next.bind(self));
      });

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var timing = performance.timing;
var requestEntries = performance.getEntries();
var perfData = {
	PageName: window.location.pathname,
	JSFilesCount: requestEntries.filter(function(element){return element.name.indexOf('.js')> -1;}).length,
	CSSFilesCount: requestEntries.filter(function(element){return element.name.indexOf('.css')> -1;}).length,
	FilesCount: requestEntries.length + 1,
	TimeToFirstByte: timing.responseStart - timing.navigationStart,
	TimeToDOMContentLoad: 
	timing.domContentLoadedEventEnd - timing.navigationStart,

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URLs into Indexed DB, via Service Workers

Let's say you're using Indexed DB for the offline data store for a catalog. One of the object stores contains product images. Wouldn't it be great if you could just have something like this in your catalog page?

<img src="indexeddb/database/store/id">

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// see http://d.hatena.ne.jp/ashigeru/20090113/1231855642

var calc = {
  add: function (node) {
    return visit(this, node.l) + visit(this, node.r);
  },
  sub: function (node) {
    return visit(this, node.l) - visit(this, node.r);
  },
  val: function (node) {

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/*\
title: $:/plugins/sukima/dombuilder/dombuilder.js
type: application/javascript
module-type: library

Micro DSL for DOM creation and stringification.

\*/

/**

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function run(makeGenerator) {
  return function() {
    var generator = makeGenerator.apply(this, arguments);
    var handle = function(p) {
      if (p.done) return p.value;
      return p.value.then(function(v) {
        return handle(generator.next(v));
      });
    };
    return handle(generator.next());

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API	Status Codes
[Twitter][tw]	200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504
[Stripe][stripe]	200, 400, 401, 402, 404, 429, 500, 502, 503, 504
[Github][gh]	200, 400, 422, 301, 302, 304, 307, 401, 403
[Pagerduty][pd]	200, 201, 204, 400, 401, 403, 404, 408, 500
[NewRelic Plugins][nr]	200, 400, 403, 404, 405, 413, 500, 502, 503, 503
[Etsy][etsy]	200, 201, 400, 403, 404, 500, 503
[Dropbox][db]	200, 400, 401, 403, 404, 405, 429, 503, 507

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const postcss   = require('postcss');
const fs        = require('fs');
const __isDEV__ = false;

const plugin = postcss.plugin('postcss-cssmodules-normalize', function (opts={}) {

    return function (css, result) {

        var selMap = new Map();

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function scrollIt(element, duration = 200, easing = 'linear', callback) {
  // define timing functions
  const easings = {
    linear(t) {
      return t;
    },
    easeInQuad(t) {
      return t * t;
    },
    easeOutQuad(t) {

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function throttle(fn, wait) {
  var time = Date.now();
  return function() {
    if ((time + wait - Date.now()) < 0) {
      fn();
      time = Date.now();
    }
  }
}