ssrihari

An opinionated list of excellent Clojure learning materials

These resources (articles, books, and videos) are useful when you're starting to learn the language, or when you're learning a specific part of the language. This an opinionated list, no doubt. I've compiled this list from writing and teaching Clojure over the last 10 years.

• 🔴 Mandatory (for both beginners and intermediates)
• 🟩 For beginners
• 🟨 For intermediates

Table of contents

1. Getting into the language

probonopd

Simple Parametrized Snap-fit Enclosure for a PCB in Onshape

One killer application for 3D printing is building enclosures for electronics prototypes. Many hobbyists use tools like TinkerCAD to build simple project boxes that are held together using screws.

A more elegant solution is to use snapfit enclosures that consist of two parts that can be snapped together with a satisfying click and without the need for additional parts or tools. Depending on how these snap-fits are designed, pulling the parts apart can be very easy to next to impossible.

Key principles

• The part must not be under stress after being snapped together. PLA slowly deforms over time if it is under pressure for a prolonged period of time. Hence avoid "friction fits" where to parts are joined simply due to the friction betwee them
• Always use clearance, at least in x and y dimensions. 0.1mm for a well-tuned FDM printer to 0.2mm for larger nozzles and/or faster printing situations

r-k-b

// Intended to be run from the Snippets panel in Chrome Dev Tools, targeting the Elm Debugger popout window.
// https://gist.github.com/r-k-b/9e341370159e87b7f8b09200660e93ea
(() => {
    // these are multiple megabytes in size, too big to diff
    const blacklist = ['lookup', 'repository', 'historyDetail', 'templateInfos'];

    const getChevrons = () => {
        const all = [...document.querySelectorAll('span[style*="width: 2ch"]')]
            .map(node => ({node, label: node.nextSibling.textContent}))
            .filter(chev => !blacklist.includes(chev.label));

yogthos

Introductory resources

• High level overview https://yogthos.github.io/ClojureDistilled.html
• An Animated Introduction to Clojure https://markm208.github.io/cljbook/
• Interactive tutorial in a browser https://tryclojure.org/
• Interactive exercises http://clojurescriptkoans.com/
• Clerk notebooks with introductory examples https://github.clerk.garden/anthonygalea/notes-on-clojure
• More interactive exercises https://4clojure.oxal.org/
• Lambda Island tutorials https://lambdaisland.com/
• Functional Programming with Clojure resources https://practicalli.github.io/

mordrax

This gist started Wednesday 29th August. We have until Friday 7th September to upgrade to Elm 0.19. This is a bunch of notes which I'm keeping track of to eventually turn into an article later on. Hope it helps your upgrade.

Day 1

Pre upgrade

428 Elm files.

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

levelsio

<?
	//
	// [ BUY BTC & ETH DAILY ON BITSTAMP ]
	// by @levelsio
	//
	// 2017-08-23
	//
	// 1) buy $40/day BTC
	// 2) buy $10/day ETH
	//

mterwill

Note: everything here is pretty specific to my usage/accounts and not written for public use... You'll probably have to tweak a bunch of stuff.

$ bean-extract config.py ~/Downloads # the csvs should be in here

ariona

If you are developing React native based Android App and using XIAOMI/MIUI Device, this tips might help you to get rid some headache when debugging the app

Enabling Developer Menu

To enable Developer Menu, you need to tag 7 times on MIUI Version under About Phone Setting menu instead of Build Number. The Developer Menu can be found on Additional Settings

Can't Install Debug APK? "...Failed to establish session"?

1. enable developer mode - In your phone, go to Settings, About phone and click on MIUI version 7 times. You’ll see a pop up which says you are a developer now.
2. Go back to Settings, Additional settings, Developer options and enable USB Debugging.
3. Connect your phone to your PC/Mac and on the phone authorize your computer

mdemin914

module Main exposing (..)

import RemoteData exposing (WebData, RemoteData(..), asCmd, fromTask)
import Html exposing (Html, text, div, input, br)
import Html.Events exposing (onClick)
import Html.Attributes exposing (type_, value)
import Http exposing (get, toTask)
import Json.Decode exposing (Decoder, string)
import Json.Decode.Pipeline exposing (decode, required)
import Random exposing (int, generate)