RubenKelevra

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peter-kehl

Presentation on Const Generics as of 1.50.0 stable and 1.52.0-nightly

Challenges

• Beware no, or misleading, documentation
  • Nothing in Rust Book.
  • RFC https://rust-lang.github.io/rfcs/2000-const-generics.html and various issues rust-lang/rust#68436 have tips or examples, but many are invalid!
• Syntax may seem arbitrary:
  • Need ::< turbofish at some places, ordinary < elsewhere.
  • Need {...} curly brackets around some const generic parameter values, not around others.
  • Some error messages feel like going in circles.

peterhs73

Create Python Virtual Environment and Install iPython Kernel for researchers working with Jupyter notebooks.

TL;DR

• Virtual Environment
  • Virtualenv

    virtualenv env_to_create  
    \folder_to_create\Scripts\activate
    

okitavera

/* Auto-hide toolbar */
:root[uidensity=compact] #navigator-toolbox {
  --nav-bar-height: 33px;
}

:root:not([uidensity]) #navigator-toolbox {
  --nav-bar-height: 39px;
}

:root[uidensity=touch] #navigator-toolbox {

hallettj

@-moz-document url(chrome://browser/content/browser.xul),
               url(chrome://browser/content/browser.xhtml) {

  /* hide horizontal tabs at the top of the window */
  #TabsToolbar > * {
    visibility: collapse;
  }

  /* hide navigation bar when it is not focused; use Ctrl+L to get focus */
  #main-window:not([customizing]) #navigator-toolbox:not(:focus-within):not(:hover) {

Noitidart

Tips for Working With git Submodules

Cloning Repo with Submodules

Source: Stackoverflow :: Empty Git submodule folder when repo cloned

1. Use the --recursive flag:

    git clone https://github.com/aikiframework/json.git --recursive
   

   However if you cannot, as Github desktop app on clone does not use this flag, then do this after clone:

levand

Why I don't use cider.

This is all personal opinion and a matter of taste. I'm putting it here because people have asked - I'm glad Cider exists and that a lot of people are obviously using it to great effect. This is not an attack on Cider or a an attempt to negate the experience of those who like it, just my own experience.

Also some of the critiques are more properly aimed at nRepl than Cider - I don't use nRepl either, in Emacs. For some reason I have fewer issues with it in Cursive (though I still do have some).

1. With Cider, there's too much "going on" between Emacs and Clojure. When something glitches, hangs, doesn't return a value, throws an excption, etc (as it does, multiple times a day), I don't know whether the problem is in Emacs, in the Cider client, the nRepl server, one of any of the default middlewares or in my actual program. I run Emacs in inferior lisp using lein trampoline -m clojure.main - if something goes wrong, it's either in Emacs (which is usually obvious) or my program. Mi

richhickey

(require '[clojure.core.async :as a])

(def xform (comp (map inc)
              (filter even?)
              (dedupe)
              (flatmap range)
              (partition-all 3)
              (partition-by #(< (apply + %) 7))
              (flatmap flatten)
              (random-sample 1.0)

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

Chaser324

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j