nimble risivinayaka

Why I think Webpack is the right approach to build pipelines

(I've reposted this on my blog, which you may find more pleasant to read: http://devlog.disco.zone/2016/06/01/webpack/)

I was asked on Twitter why I think Webpack is the right approach to build tooling in JavaScript applications. My explanation is, uh, a bit longer than fit in a single tweet.

When I say "right approach," I'm specifically talking about the way Webpack's pipeline functions. There are certainly some deficiencies in various aspects of Webpack: it has a rather unintuitive API, and often requires quite a bit of boilerplate to set up. However, even with these issues, I think the core principles of how Webpack functions are sound.

I should also mention here this argument basically applies to SystemJS as well. I'm skeptical of various aspects of SystemJS, but I've only taken a very surface-level look at it, so I'm gonna withhold judgement until I've had a chance

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	console.log(1);
	(_ => console.log(2))();
	eval('console.log(3);');
	console.log.call(null, 4);
	console.log.apply(null, [5]);
	new Function('console.log(6)')();
	Reflect.apply(console.log, null, [7])
	Reflect.construct(function(){console.log(8)}, []);
	Function.prototype.apply.call(console.log, null, [9]);
	Function.prototype.call.call(console.log, null, 10);

	--log_gc (Log heap samples on garbage collection for the hp2ps tool.)
	type: bool default: false
	--expose_gc (expose gc extension)
	type: bool default: false
	--max_new_space_size (max size of the new generation (in kBytes))
	type: int default: 0
	--max_old_space_size (max size of the old generation (in Mbytes))
	type: int default: 0
	--max_executable_size (max size of executable memory (in Mbytes))
	type: int default: 0

	var svg = document.querySelector( "svg" );
	var svgData = new XMLSerializer().serializeToString( svg );

	var canvas = document.createElement( "canvas" );
	var ctx = canvas.getContext( "2d" );

	var img = document.createElement( "img" );
	img.setAttribute( "src", "data:image/svg+xml;base64," + btoa( svgData ) );

	img.onload = function() {

	#!/usr/bin/env node

	// Verify the most famous MD5 collision example in JavaScript, using nothing but
	// built-in Node modules.

	var crypto = require('crypto');
	var ucs2encode = require('punycode').ucs2.encode;
	var assert = require('assert');

	var md5 = function(string) {

	var svg = document.getElementById('graph'),
	xml = new XMLSerializer().serializeToString(svg),
	data = "data:image/svg+xml;base64," + btoa(xml),
	img = new Image()

	img.setAttribute('src', data)
	document.body.appendChild(img)

	/* lazyload.js (c) Lorenzo Giuliani
	* MIT License (http://www.opensource.org/licenses/mit-license.html)
	*
	* expects a list of:
	* `<img src="blank.gif" data-src="my_image.png" width="600" height="400" class="lazy">`
	*/

	!function(window){
	var $q = function(q, res){
	if (document.querySelectorAll) {