pthom

import numpy as np
import cv2

def overlay_alpha_image_lazy(background_rgb, overlay_rgba, alpha):
    # cf https://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending
    # If the destination background is opaque, then
    #   out_rgb = overlay_rgb * overlay_alpha + background_rgb * (1 - overlay_alpha)
    overlay_alpha = overlay_rgba[: , : , 3].astype(np.float) / 255. * alpha
    overlay_alpha_3 = np.dstack((overlay_alpha, overlay_alpha, overlay_alpha))
    overlay_rgb = overlay_rgba[: , : , : 3].astype(np.float)

arigesher

find_value = (haystack, needle, cache=new WeakMap()) ->

  # console.log "haystack: ", haystack 
  # console.log "needle: ", needle

  try 
    if haystack?
      unless typeof haystack == 'object' and cache.has haystack 
        cache.set haystack, true 
        for key, value of haystack 

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.

---

sbentzen

--------- 
-- Convert Things database to Things Beta database. 
-- This script clones all area's, projects, people and tasks with all its relations, properties and correct ordering without any duplicates. 
-- * 25 November 2011: Initial version. 
-- * 26 November 2011: Removed some linefeeds to make it better readable on the forum. 
-- * 27 November 2011: Fixed bug in addTask where activation was set in error. 
-- 
-- TODO: 
-- * Preserve log dates of completed tasks in the logbook. (I really want this, but think it isn't possible according to the current Things AppleScipt Guide?) 
-- * Preserve repeating schedules. (I think this isn't possible either?)