Trung Vo trungvose

Ideas

I have collected and moderated these ideas from various public sources and put into one place so that problem solvers and solution developers may find inspirations. Because I wish to update it regularly, I have setup as a single page wiki. You may try these ideas on hackathons/competitions/research; some are quite intense problems and some are not. Many of the problems were prepared keeping Dhaka/Bangladesh in mind, but of course can be applied to just about any underdeveloped/developing and sometimes developed countries.

Categories:

Eradicate Extreme Poverty and Hunger
Education
Healthcare
Governance

Comparison of ASP.NET and Node.js for Backend Programming

We will compare ASP.NET and Node.js for backend programming.
Source codes from examples.

Updates

This document was published on 21.09.2015 for a freelance employer. Some changes since then (14.02.2016):

Koa.js no longer uses co-routines, it has switched to Babel's async/await. yield and await are used almost in the same way, so I see no point to rewrite the examples.

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.

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

⇐ back to the gist-blog at jrw.fi

Advanced SCSS

Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso

	function parseVideo (url) {
	// - Supported YouTube URL formats:
	// - http://www.youtube.com/watch?v=My2FRPA3Gf8
	// - http://youtu.be/My2FRPA3Gf8
	// - https://youtube.googleapis.com/v/My2FRPA3Gf8
	// - Supported Vimeo URL formats:
	// - http://vimeo.com/25451551
	// - http://player.vimeo.com/video/25451551
	// - Also supports relative URLs:
	// - //player.vimeo.com/video/25451551

	// italics for objects
	(function (values) {
	function toString(x) {
	var v = x;
	v = (v \|\| v === "") ? JSON.stringify(v) : String(v);
	if (typeof x === 'object') v = v.italics();
	return v;
	}
	function describe (i,j) {
	var v1 = values[i],

	/* Extend the Underscore object with the following methods */

	// Rate limit ensures a function is never called more than every [rate]ms
	// Unlike underscore's _.throttle function, function calls are queued so that
	// requests are never lost and simply deferred until some other time
	//
	// Parameters
	// * func - function to rate limit
	// * rate - minimum time to wait between function calls
	// * async - if async is true, we won't wait (rate) for the function to complete before queueing the next request