hippietrail

const std = @import("std");

pub fn main() void {
    var foo: ?u64 = 101;
    std.debug.print("optional u64 foo = '{}'\n", .{optionalU64(foo)});
    foo = null;
    std.debug.print("optional u64 foo = '{}'\n", .{optionalU64(foo)});
    foo = 1000000;
    std.debug.print("optional u64 foo = '{}'\n", .{optionalU64(foo)});
}

hippietrail

// adds the %hb specifer to print a number of bytes in human-readable number of bytes/kb/mb
// there's no way to modify or build a va_list after handling some of them ourselves
// so we get the standard function to ignore them by treating them as zero-length strings
// this could be a problem for compilers that evaluate a number as a string pointer before truncating
// but it works with clang on Xcode 15.3
// there's no buffer overflow handling to make the code easy to follow - don't deploy as-is in real code!
void custom_fprintf(FILE* stream, const char* format_orig, ...) {
    size_t format_orig_len = strlen(format_orig);
    
    va_list args_orig, args_copy;

hippietrail

import Foundation

/// Executes two commands in a pipeline.
///
/// - Parameters:
///   - firstCommand: The first command to execute. This should be a valid
///                   command that you would type into the terminal.
///   - secondCommand: The second command to execute. This should be a valid
///                    command that you would type into the terminal.
///   - args: The command line arguments passed to the script.

hippietrail

import url from 'url';

import parse from 'html-dom-parser';
import { Element, Text } from 'domhandler';
import { decodeXML } from 'entities';

async function getHtmlByVideoID(videoID: string): Promise<string> {
    const reponse = await fetch(url.format({
        protocol: 'https',
        hostname: 'www.youtube.com',

hippietrail

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious about learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder due to the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentation often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

hippietrail

var fs            = require('fs'),
    StringDecoder = require('string_decoder').StringDecoder,
    util          = require('util');

function lineByLine(fd) {
  var blob = '';
  var blobStart = 0;
  var blobEnd = 0;

  var decoder = new StringDecoder('utf8');

hippietrail

// ==UserScript==
// @name           Hippietrail's StackExchange search to Google search
// @description    Convert a search on a StackExchange site to a Google search of that site
// @version        0.0
// @namespace      hippietrail
// @include        http://stackoverflow.com/search*
// @include        http://meta.stackoverflow.com/search*
// @include        http://serverfault.com/search*
// @include        http://meta.serverfault.com/search*
// @include        http://superuser.com/search*

hippietrail

var $c = $('#h-related-tags').parent().contents(),
    s = null,
    arr = [];

$c.each(function(i, e) {
    var $sl, counts;

    if (e.tagName === 'A') {
        s = i;
    } else if (e.tagName == 'BR') {

hippietrail

$('a.l').map(function(i, e) {
  return !e.search ? e.href : (function(s) {
    var u = '?';
    s.split('&').forEach(function(ee, ii) {
      var e = ee.split('=');
      if (e[0] == 'url')
        u = e[1];
    });
    return decodeURIComponent(u);
  })(e.search);

hippietrail

$('<div>', {
  class: 'question-summary',
  id: 'question-summary-QID',
  html: $('<div>', {
    class: 'statscontainer',
    html: $('<div>', {
      class: 'statsarrow'
    })
  }).append($('<div>', {
    class: 'stats',