JamieMason

ES6 Partial Application in 3 Lines

const pApply = (fn, ...cache) => (...args) => {
  const all = cache.concat(args);
  return all.length >= fn.length ? fn(...all) : pApply(fn, ...all);
};

Example

arastu

/**
* Open https://app.snapp.ir
* Login with your credentials
* Copy and pasting this code in developer tools console
* Waiting... :)
*/
(async function () {
    function sleep(ms = 0) {
        return new Promise(r => setTimeout(r, ms));
    }

alireza-ahmadi

// # Usage
//
// Save this file and replace username and password on the last line of the file with
// your Snapp username and password then run the following commands:
//
// yarn init && yarn add request
// node SnappTotalPriceCalculator.js
//

const request = require('request');

craigtaub

// -------- declaration of Store, reducers, actions  --------  -------- 

function createStore(reducers) {
    let currentSubscribers = [];

    const dispatch = (action) => {
        const currentState = reducers[action.type](currentState, action);
        for (let i = 0; i < currentSubscribers.length; i++) {
            currentSubscribers[i](currentState);
        }

IVIR3zaM

/**
compiled for max 12 active items 
**/
@media (max-width: 767px) {
  .xs-items-1 .carousel-inner .active.left {
    left: -100%;
  }
  .xs-items-1 .carousel-inner .active.right {
    left: 100%;
  }

akashnimare

# Requirements

* Python 2.7
* Google Chrome
* ChromeDriver - WebDriver for Chrome

- Download the latest chromedrive which is 2.28 from here - https://sites.google.com/a/chromium.org/chromedriver/downloads
- Extract and move `chromedriver` file to `/usr/local/bin/chromedriver`
- git clone https://github.com/li-xinyang/OS_FrontendMaster-dl
- cd OS_FrontendMaster-dl

judy2k

# Pass the env-vars to MYCOMMAND
eval $(egrep -v '^#' .env | xargs) MYCOMMAND
# … or ...
# Export the vars in .env into your shell:
export $(egrep -v '^#' .env | xargs)

JamieMason

ES6 JavaScript Compose Function

Definition

const compose = (...fns) =>
  fns.reduceRight((prevFn, nextFn) =>
    (...args) => nextFn(prevFn(...args)),
    value => value
 );

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

nrollr

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :