Shawn zekrom-vale

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Dragon

zekrom-vale / length

Last active June 1, 2017 14:07 — forked from olvado/getAverageColourAsRGB.js

Get the average colour of an image in javascript using getImageData in CANVAS

	function getAvColor (img) {
	var canvas = document.createElement('canvas'),
	context = canvas.getContext && canvas.getContext('2d'),
	rgb,
	pixelInterval = 5, // Rather than inspect every single pixel in the image inspect every 5th pixel
	count = 0,
	data, length,
	i = -4;

	// return the base colour for non-compliant browsers

zekrom-vale / binarySearch.js

Last active March 9, 2018 13:28

Find if the value exists in a sorted array or return the index.

	function binarySearch(l,v){
	var m=0,M=l.length,g;
	while(m<=M){
	//bitwisecmd.com/#0xffffffff%3E%3E%3E1
	if(M<=0xF0000000){
	while(m<=M){
	g=(M+m)>>>1;
	if(l[g]===v)return g;
	if (l[g]<v)m=g+1;
	else M=g-1;

zekrom-vale / isPrime1K.js

Last active March 9, 2018 13:33

Check if a number under 1K is prime

	function isPrime1K(v){
	v=Math.abs(v);
	if(v==1 \|\| v/2==Math.floor(v/2))return false;
	if(v>997)return undefined;
	return binaryExists(
	[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997],
	v);
	}

	function binaryExists(l,v){

zekrom-vale / binarySort.js

Created March 11, 2018 03:07

Sort an array using binarySearch and insertionSorting to maintain efficiency.

zekrom-vale / removeFromArr.patch

Last active April 6, 2018 12:38

zekrom-vale / objectFlatten.js

Last active May 28, 2018 13:55

Flatten an object or get the deep keys of one

	function getDeepKeys(obj,key,d="/"){
	if(typeof(obj)!=="object")return null;
	var arr=[];
	for(let i in obj){
	if(typeof(obj[i])==="object")arr=arr.concat(getDeepKeys(obj[i],key?key+d+i:i));
	else arr.push(key?key+d+i:i);
	}
	return arr;
	}

zekrom-vale / ebay.css

Last active November 28, 2018 18:51

Trying to create an external CSS sheet for eBay, unfortunately eBay blocks all external references or complains about it.

	c{text-align:center}
	div,pre{font-size:18px}
	*{font-family:Arial,Helvetica,sans-serif}
	button{background:cyan;border-color:#9ff;border-radius:5px;cursor:pointer;margin:0 2px}
	button:hover{background:#9ff;border-color:cyan;border-radius:5px}
	nav a{font-size:26px;text-decoration:none}h1,h2{margin:0 2px}
	#p1,#p2{fill:cyan;stroke:#9ff;stroke-width:5}p{margin-top:0}
	.s1{width:1000;height:50}.s2{width:500;height:25}
	.s1 text{font-size:36px}
	.s2 text{font-size:28px}

zekrom-vale / PowerPoint.RunPrograms.reg

Created September 18, 2018 17:33

Allows PowerPoint to run programs (Warning will appear the first time)

	Windows Registry Editor Version 5.00

	[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\PowerPoint\Security]
	"RunPrograms"=dword:00000001

zekrom-vale / Fibonacci.js

Created July 22, 2019 02:47

Fibonacci sequence using generators in js

zekrom-vale / parallelGet.js

Created July 23, 2019 02:41

	console.time("test");
	Promise.all([
	new Promise(r=>chrome.storage.sync.get(null, s=>r(s))),
	new Promise(r=>chrome.storage.local.get(null, l=>r(l)))
	]).then(x=>console.timeEnd("test"));

	console.time("test2");
	chrome.storage.sync.get(s=>{
	chrome.storage.local.get(l=>console.timeEnd("test2"));
	});