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View bitwise-operations.md

Bitwise operations

Using bitwise operations is blazing fast for the VM. Here is how you can encode and use information: First you have to determine the number of operations that you need to encode to know how many bits you need, based on 2^n, where n is the number of bits, and 2^n the number of operations that you can encode.

For example if I have 5 operations, I need 3 bits (2^2 = 4 operations, and 2^3 = 8 operations). Then you can encode the operations in an enum. Each operation will have a different number, and you need to shift each operation by 32 bits - n (for 5 operations and 3 bits, we will shift by 32-3=29).

@ocombe
ocombe / __workaround.node.ts
Created Mar 13, 2017
ng2-translate + universal
View __workaround.node.ts
/*
* THIS IS TEMPORARY TO PATCH 2.1.1+ Core bugs
*/
/* tslint:disable */
let __compiler__ = require('@angular/compiler');
import {__platform_browser_private__} from '@angular/platform-browser';
import {__core_private__} from '@angular/core';
let patch = false;
if(!__core_private__['ViewUtils']) {
@ocombe
ocombe / translateLSLoader.ts
Created Apr 27, 2016
ng2-translate file loader with localstorage to speed up things
View translateLSLoader.ts
import {TranslateLoader} from "ng2-translate/ng2-translate";
import {Observable} from "rxjs/Observable";
import {Response, Http} from "angular2/http";
export class TranslateLSLoader implements TranslateLoader {
constructor(private http: Http, private prefix: string = 'i18n', private suffix: string = '.json') {}
/**
* Gets the translations from the localStorage and update them with the ones from the server
* @param lang
@ocombe
ocombe / translateUniversalLoader.ts
Last active Mar 27, 2019
ng2-translate file loader for Angular Universal (server side)
View translateUniversalLoader.ts
import {TranslateLoader} from "ng2-translate/ng2-translate";
import {Observable} from "rxjs/Observable";
import fs = require('fs');
export class TranslateUniversalLoader implements TranslateLoader {
constructor(private prefix: string = 'i18n', private suffix: string = '.json') {}
/**
* Gets the translations from the server
* @param lang
@ocombe
ocombe / Permanent Node HTTP server.md
Last active Feb 18, 2019
Daemon for permanent node web server on linux.
View Permanent Node HTTP server.md

Install dependencies:

sudo npm i -g forever http-server

Add server script

Copy startServer.js to /usr/lib/startServer.js

Create service

  • Copy content of http-server in /etc/init.d/http-server
@ocombe
ocombe / util.js
Created Jun 19, 2013
Forwards events from a floating mask element to the underlying iframe document, except for scrolling
View util.js
/**
* Forwards events from a floating mask element to the underlying document, except for scrolling
*/
var forwardEvents = function(element) {
var evts = [ 'dblclick', 'click', 'tap', 'doubletap', 'mousedown', 'mouseup' ];
for(var i = 0, l = evts.length; i < l; i++) {
element.addEventListener(evts[i], function(event) {
var s = [0, 0],
x = Ext.num(event.pageX, event.clientX) - s[0],
@ocombe
ocombe / directive.js
Created Jun 13, 2013
Angular directive for limited textarea (limited in number of octets in this case)
View directive.js
angular.module('grid').
directive('limitedtextarea', function () {
var byteLength = function (s, b, i, c) {
for (b = i = 0; c = s.charCodeAt(i++); b += c >> 11 ? 3 : c >> 7 ? 2 : 1);
return b;
}
return {
restrict: 'E',
replace: true,
@ocombe
ocombe / gist:5771999
Last active Dec 18, 2015
Inline jQuery search filter
View gist:5771999
$(document).ready(function() {
// let's make a case insensitive contains selector
$.extend($.expr[':'], {
'containsi': function(elem, i, match, array) {
return (elem.textContent || elem.innerText || '').toLowerCase().indexOf((match[3] || "").toLowerCase()) >= 0;
}
});
});
//filter results based on query
@ocombe
ocombe / gist:5771995
Last active Dec 18, 2015
Detect text encoding in php
View gist:5771995
public function findEncoding($str) {
$tab = array("UTF-8", "ASCII", "ISO-8859-1");
foreach ($tab as $i) {
foreach ($tab as $j) {
$chain .= " [iconv('$i','$j','$str'): " . iconv($i, $j, "$str") . "] ";
}
}
return $chain;
}
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