hthuong09

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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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.

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hthuong09

Decoding Base64-URL without padding

1) Add padding

Divide the length of the input string by 4, take the remainder. If it is 2, add two = characters at the end. If it is 3, add one = character at the end.

You now have Base64-URL with padding.

2) Translate to Base64

hthuong09

(function () {
	WebSocket.prototype._send = WebSocket.prototype.send;
	WebSocket.prototype.send = function (data) {
		this._send(data);
		this.addEventListener('message', function (msg) {
			console.log('>> ' + msg.data);
		}, false);
		this.send = function (data) {
			this._send(data);
			console.log("<< " + data);

hthuong09

/*
 * robotMaze.js
 *
 * The blue key is inside a labyrinth, and extracting
 * it will not be easy.
 *
 * It's a good thing that you're a AI expert, or
 * we would have to leave empty-handed.
 */

hthuong09

// selection range
var range = window.getSelection().getRangeAt(0);

// plain text of selected range (if you want it w/o html)
var text = window.getSelection();
    
// document fragment with html for selection
var fragment = range.cloneContents();

// make new element, insert document fragment, then get innerHTML!