yetithefoot

@implementation UIImage (AverageColor)
 
- (UIColor *)averageColor {
 
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    unsigned char rgba[4];
    CGContextRef context = CGBitmapContextCreate(rgba, 1, 1, 8, 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);
 
    CGContextDrawImage(context, CGRectMake(0, 0, 1, 1), self.CGImage);
    CGColorSpaceRelease(colorSpace);

yetithefoot

function duplicate(){
  // write your one-line implementation here
}

// should prints [1,2,3,4,5,1,2,3,4,5]
console.log(duplicate([1,2,3,4,5]));

// should prints ['a','b','c','a','b','c']
console.log(duplicate(['a','b','c'])); 

yetithefoot

function add(){
  // write your one-line implementation here
}

// should prints 7
console.log(add(2,5));

// should prints 7
console.log(add(2)(5));

yetithefoot

#!/bin/bash

curl  "https://api.github.com/repos/d3/d3/issues?per_page=1000" | jq '.[] | .title' | awk '{ print length($0); }' | jq -s 'add/length'

yetithefoot

JavaScript error logging services

• http://www.errorify.com/ - source maps
• http://errorception.com/ - translate error messages to English
• http://www.exceptionhub.com/
• http://jserrlog.appspot.com/
• http://www.muscula.com/ - source maps, translate error messages to English
• https://www.airbrake.io/ - tracekit, source maps
• http://www.errorstack.com/

yetithefoot

function get_avatar_from_service(service, userid, size) {
    // this return the url that redirects to the according user image/avatar/profile picture
    // implemented services: google profiles, facebook, gravatar, twitter, tumblr, default fallback
    // for google   use get_avatar_from_service('google', profile-name or user-id , size-in-px )
    // for facebook use get_avatar_from_service('facebook', vanity url or user-id , size-in-px or size-as-word )
    // for gravatar use get_avatar_from_service('gravatar', md5 hash email@adress, size-in-px )
    // for twitter  use get_avatar_from_service('twitter', username, size-in-px or size-as-word )
    // for tumblr   use get_avatar_from_service('tumblr', blog-url, size-in-px )
    // everything else will go to the fallback
    // google and gravatar scale the avatar to any site, others will guided to the next best version

yetithefoot

// This script will boot app.js with the number of workers
// specified in WORKER_COUNT.
//
// The master will respond to SIGHUP, which will trigger
// restarting all the workers and reloading the app.

var cluster = require('cluster');
var workerCount = process.env.WORKER_COUNT || 2;

// Defines what each worker needs to run

yetithefoot

BW gradient generator (with height and lines number)

A Pen by Vlad Tsepelev on CodePen.

License.

yetithefoot

# memory and map uses to limit memory on slall instances
convert -limit memory 32 -limit map 64 input.tif -units PixelsPerInch -density 72 -quality 80 -resize 1024 output.jpg

yetithefoot

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start
sudo usermod -a -G docker ec2-user