Andrei Sedoi bsnote

Random weighted element with Redis sorted sets

Imagine you have elements A, B and C with weights 1, 2 and 3. You compute the sum of the weights, which is 1+2+3 = 6

At this point you add all the elements into a sorted set using this algorithm:

SUM = ELEMENTS.TOTAL_WEIGHT // 6 in this case.
SCORE = 0

Current implementation is known as streams2.
Introduced in node v0.10.
"suck" streams instead of "spew" streams.
Instead of data events spewing, call read() to pull data from source.
When there isn't any data to consume, then read() will return undefined.
Adding a data event listener will switch the Readable stream into "old mode", where data is emitted as soon as it is available rather than waiting for you to call read() to consume it. This requires you to handle backpressure problems manually.
The pipe method helps write less code and handles back-pressure.
If you add an end listener and don't ever read() or pipe(), it'll never emit end.

Recent releases have been pre-built using cross-compilers and this script and are downloadable below.

If you have found these packages useful, give me a shout out on twitter: @adammw

	-- Load Vue library
	package.loadlib("https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.js", "*")
	-- Get Object helper
	local Object = dofile("https://gist.githubusercontent.com/daurnimator/5a7fa933e96e14333962093322e0ff95/raw/8c6968be0111c7becc485a692162ad100e87d9c7/Object.lua").Object

	local myapp = js.new(js.global.Vue, Object{
	el = "#foo";
	template = [[
	<div id="foo">{{message}}</div>
	]];

	/* does effectively this, but without all that fancy
	* stream mumbo jumbo:

	var net = require('net');

	var server = net.createServer(function(socket) {
	socket.pipe(socket);
	});

	server.listen(PORT, function() {