stalniy

const { defineAbility } = require('@casl/ability');
const { rulesToQuery } = require('@casl/ability/extra');
const Knex = require('knex');
const { Model } = require('objection');
const { interpret } = require('@ucast/objection')
const { CompoundCondition } = require('@ucast/core')

const knex = Knex({
  client: 'sqlite3',
  connection: ':memory:'

sagnitude

List of desktop Nvidia GPUS ordered by CUDA core count

I created it for those who use Neural Style

Guys, please add your hardware setups, neural-style configs and results in comments!

GPU	CUDA cores	Memory	Processor frequency	Memory Bandwidth (GB/sec)
Geforce GTX TITAN Z	5760	12 GB	705 / 876	673

Atlas7

// ***** Requirements

// Implement function sequence, which returns new n-size Array filled according to pattern.
//
// pattern may be:
// - a function that takes two: (element, index), one: (element) or any arguments (similar to map function), then filled running this function, in other words: function describes sequence,
// - number, string or any other object, then filled by copying, this object n-times.
//

// ****** Solution

timharding

Configuring CircleCI to deploy to Engine Yard

Preamble

This is a brief description of how to get CircleCI builds deployed to an Engine Yard hosted staging environment automatically.

We're essentially asking CircleCI to execute commands on the Engine Yard gem to ask EY to deploy a Rails app.

CircleCI needs an SSH key and an API token to talk to Engine Yard, at that point you can execute the deploy command on the gem when the build succeeds.

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

bregenspan

## Customize the test machine
machine:
    environment:
        SAUCEUSER: [USERNAME HERE]
        SAUCEKEY: [KEY HERE]

dependencies:
    post:
        - wget https://d2nkw87yt5k0to.cloudfront.net/downloads/sc-latest-linux.tar.gz && tar -xvf sc-latest-linux.tar.gz

brianc

Using pg.connect is the way to go in a web environment.

PostgreSQL server can only handle 1 query at a time per conenction. That means if you have 1 global new pg.Client() connected to your backend your entire app is bottleknecked based on how fast postgres can respond to queries. It literally will line everything up, queuing each query. Yeah, it's async and so that's alright...but wouldn't you rather multiply your throughput by 10x? Use pg.connect set the pg.defaults.poolSize to something sane (we do 25-100, not sure the right number yet).

new pg.Client is for when you know what you're doing. When you need a single long lived client for some reason or need to very carefully control the life-cycle. A good example of this is when using LISTEN/NOTIFY. The listening client needs to be around and connected and not shared so it can properly handle NOTIFY messages. Other example would be when opening up a 1-off client to kill some hung stuff or in command line scripts.

CMCDragonkai

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

1. Raw Attribute Strings

   <div my-directive="some string" another-param="another string"></div>

NV

stopBefore.js

2min screencast

Examples

stopBefore(document, 'getElementById')
stopBefore('document.getElementById') // the same as the previous
stopBefore(Element.prototype, 'removeChild')

duemir

var luhn = function (number) {
    return number.split('').map(function (digit, index, arr) {
        return (index % 2 !== arr.length % 2) ? parseInt(digit, 10) : 2 * digit;
    }).reduce(function sum(val, cur, idx, arr) {
        return val + (cur < 10 ? parseInt(cur, 10) : (String(cur).split('').reduce(sum, 0)));
    }, 0) % 10;
};

exports.is_valid = function (number) {
    return luhn(number) === 0;