rndme

// ccby@dandavis

function ImmutableArray(){

  function odp(k,v){ Object.defineProperty(r,k,{value:v}); }

  let r = [...arguments];
  if(r.length===1 && Array.isArray(r[0])) r = r[0];

  odp("push", function(){return ImmutableArray(r.concat(...arguments));});

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function odp(obj, get, set, isHidden){
   Object.defineProperty(obj, /^\w+/.exec(get), {get, set, enumerable: !isHidden});
  return odp.bind(this, obj);
}

// example usage in a class
class Ohm {
 constructor(V, I){
   odp(this, _=>Ohm)
    ( v=>V,   _=>V=_   )

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function Ohm(v, i, _){
  (_=(k, get, set) => Object.defineProperty(this, k, {get, set, enumerable: 1}) && _)
   ("v", _=>v,   x=>v=x)
   ("i", _=>i,   x=>i=x)
   ("w", _=>v*i, x=>i=x/v)
   ("r", _=>v/i, x=>i=v/x);
}

rndme

/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS 180-1
 * Version 2.2 Copyright Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */

// smooooshed by dandavis 2024. tested in jscript5.5

rndme

function wc(name, def) { // webcomponent wrapper by dandavis. MIT.

	const PROPS = Object.keys(def.props || {});

	class wcMaker extends HTMLElement {
		constructor() {
			super();
			console.info("constrtr", this.constructor);
			const shadow = this.attachShadow({

rndme

function fmt(String) { // modernized version of dean's tool in ie7.js
  // Replace %n with arguments[n].
  // e.g. fmt("%1 %2%3 %2a %1%3", "she", "se", "lls") == "she sells sea shells";
  return String.replace(/%([\d])/g, fmt.call.bind([].at.bind(arguments)));
};

// fmt("this is a %2 script, ain't it %1?", "cool", "dan");
// fmt("this is a %2 script, ain't it %1?", "dan", "cool");

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function setClipboard(text) {  	
    return navigator.clipboard.write( [new ClipboardItem({['text/plain']: new Blob([text], { type:'text/plain'}) })]);
}
  

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var worker = new Worker('data:text/javascript,' + escape("setInterval(postMessage.bind(this,0), 1000)"));
worker.onmessage=console.info.bind(console); // attach your interval callback here

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  function useState(value){ //  designed after https://reactjs.org/docs/hooks-intro.html demo
	  var o = useState.state || (useState.state = new Map());
		if(o.has(arguments.callee.caller)){ //  not first time?
		  	return o.get(arguments.callee.caller);
		}else{
		  // build array of returns, set it, return it
		    var ret = [];
		     [...arguments].map((x, i)=>{
			     ret.push(x)
				   ret.push(function _updater(val){    ret[(i*2)] = val;     });

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function ip(cb) {
	with(new RTCPeerConnection) {
		createDataChannel(0);
		createOffer(e=> setLocalDescription(e), Date);
		onicecandidate =e=>{if(e=e.candidate) cb(e.candidate.split(/\s+/)[4])};
	}
}