rakeshpai’s gists

rakeshpai / bitflipper.js

Created July 9, 2016 07:55

Code to randomly turn on or off an LED. With an extremely useful HTTP API. Uses Espruino, running on an ESP8266 (ESP-03).

	var wifi = require("Wifi"),

	ledPin = D14,
	buttonPin = D0,

	ssid = "...",
	password = "...";

	var led = (function() {
	var pulseIntervalHandle,

rakeshpai / gulpfile.js

Last active October 13, 2015 15:12

Browserify + Uglify + Espruino using Gulp

	var gulp = require("gulp"),
	browserify = require("browserify"),
	source = require("vinyl-source-stream"),
	buffer = require("vinyl-buffer"),
	uglify = require("gulp-uglify"),
	through = require("through2"),

	port = "/dev/cu.wchusbserial410",
	espruino = require("node-espruino").espruino({comPort: port});

rakeshpai / primes.js

Last active December 22, 2015 21:29

	var primes = [2];

	var n = 3; // The number we are testing. Will be incremented.

	function checkNextNumber() {
	// It's sufficient to check if there are any prime factors up to sqrt(n)

	n++;

	var limitForChecking = Math.floor(Math.sqrt(n));

rakeshpai / index.html

Created February 20, 2013 12:29

Opera .stack / .stacktrace madness

	<!doctype html>
	<title>Stackgen</title>
	<script src="stackgen.js"></script>

	<script>
	try {
	stackgen();
	} catch(e) {
	ex = e;
	throw e;

rakeshpai / foo.js

Created January 19, 2013 06:26

Code to replicate a potential bug with Firefox when using the crossorigin attribute on script tags. When using crossorigin="anonymous", if the server doesn't set access-control headers, Firefox doesn't evaluate the external script, even though it's downloaded. Thus, alert(foo) breaks with a ReferenceError if the server doesn't send the access-co…

window.foo = 3;

rakeshpai / errorception-meta.html

Created November 23, 2012 11:41

Sending meta information to Errorception

	<script>
	_errs.meta = {
	email: "[email protected]",
	sessionId: 4138727492,
	lovesCats: true
	};
	</script>

rakeshpai / gist:4134122

Created November 23, 2012 05:23

Closure compiler optimizations

	// Original

	var getElementsByTagName = "getElementsByTagName";

	var links = document[getElementsByTagName]("link"),
	anchors = document[getElementsByTagName]("a"),
	iframeContents = "...<script>var whatever = document." + getElementsByTagName + "('whatever');</script>...";


	// becomes

rakeshpai / gist:2867569

Created June 4, 2012 10:03

Email by @Airtel_Presence

	Dear Mr Pai,

	Thank you for writing to airtel.

	This is with reference to your e-mail dated 04th June 2012, wherein; you
	highlighted your concern regarding website blocking for your airtel
	account number 15793484.

	We regret for the inconvenience caused to you.

rakeshpai / beacon.inlined.js

Created April 3, 2012 03:25

Trying out with contents inlined

	var _errs=["##EC##"];
	window.onerror=function(){_errs.push(arguments)};

	(function(f,n){function r(d,a){d=d.contentWindow\|\|d.contentDocument;d.document&&(d=d.document);d.open();d.write(a);d.close()}function s(d,a){a=(""+a).replace(/</g,"<").replace(/>/g,">").replace(/'/g,""");return"<input type='hidden' name='"+d+"' value='"+a+"' />"}function o(d){l&&clearTimeout(l);l=setTimeout(t,200);d._when=p;q.push(d);try{if("ot"==m){for(var a,h=d.callee,e=/function\s([\w\-$]+)?\s\(/i,c=[],b,k;h&&10>c.length;)b=e.test(h.toString())?RegExp.$1\|\|"{anonymous}":"{anonymous}",
	k=Array.prototype.slice.call(h.arguments\|\|[]),c[c.length]=b+"("+i(k)+")",h=h.caller;a=c.join("\n");d._stack=a}}catch(g){}}function t(){var d=[],a,b,e,c,f=0,k,g=function(a,c){d.push(s(a+f,c))};try{for(;a=q.shift();){b=k=a.m\|\|a[0]\|\|a;e=a.u\|\|a[1];c=a.l\|\|a[2];if(!(k&&k instanceof Error)&&b&&"string"==typeof b&&e&&c&&("Error loading script"===b&&/Firefox/.test(navigator.userAgent)\|\|/originalCreateNotification/.test(b)?f--:(g("type","onerr"),g("mes

rakeshpai / _errsAsAnApi.html

Created January 16, 2012 20:55

Errorception populating the queue before it's ready to flush

	<script>
	var _errs = [];

	window.onerror = function() { _errs.push(arguments); }

	// <snip> Load our JS asynchronously, after page load, to process the _errs "queue"
	</script>

Rakesh Pai rakeshpai