tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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jdegoes

Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

oakes

Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

lawloretienne

Table Of Contents

• Data Structures
  • Linked Lists
  • Trees
    • Binary Trees
    • Binary Search Tree
    • Red-Black Tree
    • AVL Tree
• Tries

nolanlawson

Gradle tab completion script for Bash

A tab completion script that works for Bash. Relies on the BSD md5 command on Mac and md5sum on Linux, so as long as you have one of those two commands, this should work.

Usage

$ gradle [TAB]

pakoito

LONDON
===
South Bank
  Millenium Bridge
  Blackfriars Bridge
  Tower Bridge
Tower of London
Trafalgar Square
Rascacielos de Bank y Shoredich
Soho

PhBastiani

For-Comprehension Free Monads in Kotlin - Mini Howto

Copyright © 2020, Philippe Bastiani.
with this restriction: this GIST could be, all or part, updated, copied, diffused for documentary purposes in the Λrrow project.

This GIST is an attempt to describe a repeatable, and automatable, process for building an embedded Domain Specific Language (DSL) with the help of a Free monad.
As material, i'll use Λrrow, the functional companion to Kotlin's Standard Library.

Disclaimer: This GIST assumes that you are roughly familiar with the concept of Free monad.

i-am-tom

const Day = ({ get, left, right }) => {
  const map = f => Day ({
    get: f (extract()),

    left, right
  })

  const extend = f =>
    Day ({
      get: (left, right) => f (Day ({ get, left, right })),

wayspurrchen

History

Show file at certain commit

git show <hash>:<file>

Show history of a file

git log -p <filename>