rrag

There are many tutorials and articles available online which explain functional programming. Examples show small functions, which are composed into others which again get composed. It is hard to imagine how it would all work, then come the analogies and then the math. While the math is necessary to understand it can be difficult to grasp initially. The analogies on the other hand, (at least for me) are not relatable. Some articles assume the reader knows the different terminologies of FP. Over all I felt it is not inviting to learn.

This introduction is for those who have had a tough time understanding those analogies, taken the plunge to functional programming but still have not been able to swim. This is yet another tutorial on functional programming

Terminology

Functions as first class citizens

Functions are first class means they are just like anyone else, or rather they are not special, they behave the same as say primitives or strings or objects.

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

hollodotme

Install php7.0-fpm

# remove php5 modules
apt-get autoremove --purge php5-*
# add php-7.0 source list by [Ondřej Surý](https://github.com/oerdnj)
add-apt-repository ppa:ondrej/php
# Update index
apt-get update
# Install php7.0-fpm with needed extensions

pascalbaljet

#!/bin/bash
if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

apt-get install pkg-config libmagickwand-dev -y
cd /tmp
wget https://pecl.php.net/get/imagick-3.4.0.tgz
tar xvzf imagick-3.4.0.tgz

nivv

Guide

Note The extension Imagick is now included in Ondrej's PPA. All you need to do now is $ sudo apt-get install php-imagick, and you're done. I'll keep the guide here because a lot of it is still true for other extensions

======

I've installed PHP7 via Ondrej's PPA. He maintains these PPA's on his free time, consider donating

Install dependencies

iamshanto

== For 64 bit arch
1. Download oracle-instantclient12.1-basic-12.1.0.2.0-1.x86_64.rpm and oracle-instantclient12.1-devel-12.1.0.2.0-1.x86_64.rpm from Oracle site
2. install alien: sudo apt-get install alien
3. install oracle instal client: 
  3.1 sudo alien -i oracle-instantclient12.1-basic-12.1.0.2.0-1.x86_64.rpm
  3.2 sudo alien -i oracle-instantclient12.1-devel-12.1.0.2.0-1.x86_64.rpm
  
4. install php package
  4.1 sudo apt-get install php5-dev
  4.2 sudo apt-get install libcurl3-openssl-dev

ipbastola

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

juhaelee

React + Typescript Cheatsheet

Setup

If you use atom... download & install the following packages:

• atom-typescript
• linter-tslint

What are Typescript type definition files? (*.d.ts)

fzerorubigd

unbind C-b
set -g prefix C-b

#urxvt tab like window switching (-n: no prior escape seq)
bind -n M-down new-window
bind -n M-left prev
bind -n M-right next
#bind -n C-left swap-window -t -1
#bind -n C-right swap-window -t +1

fzerorubigd

package main

import (
	"bytes"
	"io/ioutil"
	"log"
	"net/http"
	"os"
	"time"