austintaylor

So I had this situation where I needed to delete an object from the database, if it existed. This is what I wrote:

Ruby Option 1

obj = get_object(1)
obj.destroy if obj

And as I wrote this, it seemed a bit awkward to me. We always said Ruby had a really elegant syntax, but I guess I've come to the place where I find it a little grating. The thing about this example is the asymmetry of it. Conceptually I feel like the if check goes with the assignment, but it's separated from it in a strange way.

Ruby Option 2

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 {

mogsdad

Google Apps Script Gmail Utilities

##sendAndLabel(recipient, subject, body, options, label)##

An alternative to GmailApp.sendEmail(), which applies a label to the message thread in the sender's account.

Sends an email message with optional arguments. The email can contain plain text or an HTML body. The size of the email

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)

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) {

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

getify

function Foo(who) {
	this.me = who;
}

Foo.prototype.identify = function() {
	return "I am " + this.me;
};

function Bar(who) {
	Foo.call(this,"Bar:" + who);

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
    

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.

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: