In this article we present several program samples combining Scala code with Java code. Companion objects
""" This post is simultaneously Python and literate Haskell. There is a certain truth to Greenspun's tenth law of programming. A Python project I was developing at work has slowly mutated into a compiler for a programming language without me planning it that way.
This series is intended as a guided tour of some type-level programming I have done in Scala. It generally consists of code and examples with a few lines of explanation. It is usually assumed that the reader understands the features of Scala’s type system. This is not always a good assumption about either the author or the reader of course, so comments and questions are welcome.
This article (which is also a Literate Haskell program) describes basic Hakyll metaphors in a way that I would have found useful, using a working example site to illustrate the concepts. The mechanism described in this article are not necessarily an isomorphism of the technical reality of Hakyll, but are rather a glimpse of the metaphors that I have found useful in practise when working with it. Also, it should probably be noted that I was using Hakyll 18.104.22.168 when writing this article.
Recursion is an essential part of functional programming. But if each call allocates a stack frame, then too much recursion will overflow the stack. Most functional programming languages solve this problem by eliminating stack frames through a process called tail-call optimisation .
There is too long and difficult to find a problem statement from specific Facebook Hacker Cup round. So here is copies of problem statements from various FHC rounds: Facebook Hacker Cup 2012
Image-processing software is a hot commodity: Just look at Instagram, a company built around image processing that Facebook is trying to buy for a billion dollars. Image processing is also going mobile, as more and more people are sending cellphone photos directly to the Web, without transferring them to a computer first. At the same time, digital-photo files are getting so big that, without a lot of clever software engineering, processing them would take a painfully long time on a desktop computer, let alone a cellphone.
Download Markdown 1.0.1 (18 KB) — 17 Dec 2004 Introduction Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML).