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Array intersect

Fastest function to intersect a large number of big arrays in javascript, without dependencies

• The compressed version is only 345 caracters long.
• Faster than common libraries, even a large number of arrays, or on very big arrays. (See benchmarks)

Usage

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// unfinieshed
function matchAll(regEx,str,group=0){
	regEx.lastIntex=0;
	var match;
	var results=[];
	while((match=regEx.exec(str))!==null){
		results.push(match[group]);
	}
	return results;
}

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// index size: ~ 146kB / distance / 1000 words
// https://www.kaggle.com/yk1598/symspell-spell-corrector
// https://github.com/wolfgarbe/SymSpell
function calculateWordDistance1Deletes(word){
    var deletes={};
    var fragment;
    for(var j=0;j<word.length;j++){
      fragment=wordCut(word,j);
      deletes[fragment]!==undefined?deletes[fragment]++:(deletes[fragment]=1);
    }

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# RSA
ssl_certificate		/path/fullchain.pem;
ssl_certificate_key	/path/privkey.pem;

# ECDSA
ssl_certificate		/path/0001_chain.pem;
ssl_certificate_key	/path/itchy.nl.ec.key;

ssl_dhparam		/path/dhparam4096.pem;

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var html = '<div id="test_div"><ul><li>Item 1</li><li>Item 2</li><li>Item 3</li></ul></div>';
var parser = new DOMParser();
var wrapper = parser.parseFromString(html, "text/html"); // this is a DocumentFragment
// Polyfill for DOMParser.parseFromString to support html: https://developer.mozilla.org/de/docs/Web/API/DOMParser

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function handler(mutations) {}
var observer = new MutationObserver(handler);
var options = {attributes: true}
observer.observe(element, options);

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// Source: http://code.google.com/p/gflot/source/browse/trunk/flot/base64.js?r=153

/* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
 * Version: 1.0
 * LastModified: Dec 25 1999
 * This library is free.  You can redistribute it and/or modify it.
 */

/*
 * Interfaces:

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Statistical profiling result from isolate-0x55f6bb94e1f0-v8.log, (7139 ticks, 137 unaccounted, 0 excluded).

 [Shared libraries]:
   ticks  total  nonlib   name
    318    4.5%          /usr/bin/node
    194    2.7%          /lib/x86_64-linux-gnu/libc-2.27.so
     18    0.3%          /usr/lib/x86_64-linux-gnu/libuv.so.1.0.0
      2    0.0%          [vdso]
      1    0.0%          /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25

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Object.prototype[Symbol.iterator]=function* objectIterator(){
	const keys=Object.keys(this);
	for(var i=0;i<keys.length;i++) yield keys[i];
}

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function getEventNames() {
    var doc = [];
    for (var i in document) {
        doc.push(i)
    };
    doc = doc.filter(function(i) {
            var e = document[i];
            return i.substring(0, 2) == 'on' && (e == null || e instanceof Function)
        })
        .map(s => s.replace(/^on/, ""));