Snawoot

Poor Man's Global Traffic Manager

Sometimes we need to add redundancy to some service or server which happen to be a public-facing entry point of our infrastructure. For example, imagine we want to add a high availability pair for a load balancer which sits on the edge of network and forwards traffic to alive backend servers.

                                             ┌─────────────┐
                                             │             │
                                      ┌─────►│  Backend 1  │
                                      │      │             │
                                      │      └─────────────┘

mgraeber-rc

threepointone

On implementing a client for feature flags in your UI codebase

This document isn't an explainer on Feature Flags, you can find that with my amateur writeup, or literally hundreds of better writeups out there.

This document is also agnostic to the choice of service you'd use: LaunchDarkly or split.io or optimizely or whatever; that's orthogonal to this conversation.

Instead, this document is a list of considerations for implementing a client for using Feature Flags for User Interface development. Service providers usually give a simple fetch and use client and that's it; I contend that there's a lot more to care about. Let's dive in.

To encourage usage, we'd like for the developer experience to be as brutally simple as possible. So, this should be valid usage:

alexglow

# arpeggiate a given chord, over a given octave range
# easily change the root note & scale while it's running
# based on robin.newman, https://in-thread.sonic-pi.net/t/force-random-notes-into-a-scale-after-transposing/4493/2

notes = scale(:c3,:major,num_octaves: 3) # list of 22 notes
arp = [0,2,4,7,9,11,14,16,18,21] # note values for arpeggiation, 0-indexed

live_loop :test do
  n=rand_i(10) # number of notes in "arp" list; pick one
  puts n

shakna-israel

Let's Destroy C

I have a pet project I work on, every now and then. CNoEvil.

The concept is simple enough.

What if, for a moment, we forgot all the rules we know. That we ignore every good idea, and accept all the terrible ones. That nothing is off limits. Can we turn C into a new language? Can we do what Lisp and Forth let the over-eager programmer do, but in C?

---

IanColdwater

Mute these words in your settings here: https://twitter.com/settings/muted_keywords

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vcastroi

// create a bookmark and use this code as the URL, you can now toggle the css on/off
// thanks+credit: https://dev.to/gajus/my-favorite-css-hack-32g3
javascript: (function() {
	var elements = document.body.getElementsByTagName('*');
	var items = [];
	for (var i = 0; i < elements.length; i++) {
		if (elements[i].innerHTML.indexOf('* { background:#000!important;color:#0f0!important;outline:solid #f00 1px!important; background-color: rgba(255,0,0,.2) !important; }') != -1) {
			items.push(elements[i]);
		}
	}

JoeyBurzynski

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

voznik

Coding guidelines

This document is split into three sections

1. On General Code Health. This section contains guidelines intended encourage patterns which produce more maintainable, less bug prone, code.
2. On Angular Best Practices. This section outlines the practices related to Angular, Typescript, RxJs and @ngrx/store. Following these general coding guidelines will help make the application cleaner.
3. On Angular Performance. This section contains guidelines intended to make an Angular app trigger change detection less often and on less entities.

---

Toilal

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { JWT_OPTIONS, JwtInterceptor, JwtModule } from '@auth0/angular-jwt';
import { AuthorizationService } from './authorization.service';
import { environment } from '../../environments/environment';
import { HTTP_INTERCEPTORS, HttpClientModule } from '@angular/common/http';
import { RefreshTokenInterceptor } from './refresh-token-interceptor';

function jwtOptionsFactory (authorizationService: AuthorizationService) {
  return {