gun/test/tmp/time.html

A realtime, decentralized, offline-first, graph data synchronization engine.

<h1>Infinite Stream of Tweets/Chats:</h1>

<ul></ul>
<div id="latest">while in scroll, latest tweet should show here</div>
Scroll:
<button id="up">UP</button>
<button id="down">DOWN</button>

<script src="../../examples/jquery.js"></script>
<script src="../../gun.js"></script>
<script src="../../lib/time.js"></script>

<script>$(function(){

var gun = Gun();
window.app = {};

app.newsfeed = gun.get('some').get('news').get('feed'); // this would be a timegraph

app.modifier = app.newsfeed.time();

var low = -5, top = 0;
app.modifier.range(low, top);

app.modifier.on(function(range){
  $('ul').empty(); // bad in theory, but proves out this type of "range" object.
  range.forEach(UI);
});

$('#up').on('click', function(){
  alert('not working...');
  app.modifier.range(--low, --top);
});
$('#down').on('click', function(){
  alert('not working...');
  app.modifier.range(++low, ++top);
});

function UI(say, id){
  var li = $('#' + id).get(0) || $('<li>').attr('id', id).appendTo('ul');
  $(li).text(say);
};

})</script>

<script>
/* FAKE CODE TO GENERATE FAKE TESTS */
/* SHOULD BE REPLACED WITH YOUR OWN */
/* BUT USING THE SAM TYPE OF TEST!! */
/* THIS IS BAD CODE!!!!!! */
/* IT MEMORY LEAKS INFINITELY */
/* JUST FAKING IT TILL API MAKES IT! */
/* ACTUAL CODE SHOULD USE GUN NOT INFINITE */
/* GROWING LOCAL CACHE, GUN ALREADY CACHES */
var i = 0, tweet = "this tweet says ", bad = {leak: []};
setInterval(function(){
  app.newsfeed.set(tweet + (++i));
}, 1000);
Gun.chain.time = function(){
  var chain = this.map(function(item){
    bad.leak.push(item); // bad bad bad bad
    return bad.leak.slice(0 - bad.num); // should traverse GUN not slice a memory leak
  });
  return chain;
}
Gun.chain.range = function(low, top){
  bad.low = low;
  bad.top = top;
  bad.num = top - low;
  return this;
}
</script>