alexander-yakushev

{:deps {org.clojure/clojure {:mvn/version "1.12.0-alpha3"}}

 :aliases {:dev {:extra-deps
                 {com.clojure-goes-fast/clj-async-profiler   {:mvn/version "1.0.4"}
                  com.clojure-goes-fast/clj-java-decompiler  {:mvn/version "0.3.4"}
                  com.clojure-goes-fast/clj-memory-meter     {:mvn/version "0.3.0"}}

                 :jvm-opts ["-Djdk.attach.allowAttachSelf"
                            "-XX:+UseG1GC"
                            "-XX:-OmitStackTraceInFastThrow"

yegappan

Vim Script for Python Developers

This is a guide to Vim Script development for Python developers. Sample code for the various expressions, statements, functions and programming constructs is shown in both Python and Vim Script. This is not intended to be a tutorial for developing Vim scripts. It is assumed that the reader is familiar with Python programming.

For an introduction to Vim Script development, refer to usr_41.txt, eval.txt and Learn Vimscript the Hard Way

For a guide similar to this one for JavaScript developers, refer to Vim Script for the JavaScripter

This guide only describes the programming constructs that are present in both Python and Vim. The constructs that are unique to Vim (e.g. autocommands, [key-mapping](https://vimhelp.org/map.txt.html#key-m

ericnormand

#!/bin/sh
#_(

   #_DEPS is same format as deps.edn. Multiline is okay.
   DEPS='
   {:deps {clj-time {:mvn/version "0.14.2"}}}
   '

   #_You can put other options here
   OPTS='

dsmrt

# this script queries aws logs with insights filtering on ERROR

# explanation of start and end times
#--start-time = unix timestamp 30 mins in the past
#--end-time = unix timestamp now

QUERY_ID=$(aws logs start-query \
 --profile $profile \
 --log-group-name /aws/lambda/aap-event-consumer-dev \
 --start-time `date -v-30M "+%s"` \

hmemcpy

Various talks that I like and/or find inspiring

(in no particular order)

• The art of destroying software by Greg Young
• Propositions as Types by Philip Wadler
• Constraints Liberate, Liberties Constrain by Rúnar Bjarnason
• The Future of Programming by Bret Victor
• Simple Made Easy by Rich Hickey
• The Most Beautiful Program Ever Written by William Byrd

djspiewak

How to GPG as a Scala OSS Maintainer

tl;dr Generate a GPG key pair (exercising appropriate paranoia). Send it to key servers. Create a Keybase account with the public part of that key. Use your keypair to sign git tags and SBT artifacts.

GPG is probably one of the least understood day-to-day pieces of software in the modern developer's toolshed. It's certainly the least understood of the important pieces of software (literally no one cares that you can't remember grep's regex variant), and this is a testament to the mightily terrible user interface it exposes to its otherwise extremely simple functionality. It's almost like cryptographers think that part of the security comes from the fact that bad guys can't figure it out any more than the good guys can.

Anyway, GPG is important for open source in particular because of one specific feature of public/private key cryptography: signing. Any published software should be signed by the developer (or company) who published it. Ideally, consu

reborg

Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

• The link in the table of content jumps at the copy of the answer on this page.
• The link on the answer itself points back at the original post.

Table of Content

djspiewak

Getting Started in Scala

This is my attempt to give Scala newcomers a quick-and-easy rundown to the prerequisite steps they need to a) try Scala, and b) get a standard project up and running on their machine. I'm not going to talk about the language at all; there are plenty of better resources a google search away. This is just focused on the prerequisite tooling and machine setup. I will not be assuming you have any background in JVM languages. So if you're coming from Python, Ruby, JavaScript, Haskell, or anywhere…  I hope to present the information you need without assuming anything.

Disclaimer It has been over a decade since I was new to Scala, and when I was new to Scala, I was coming from a Java and Ruby background. This has probably caused me to unknowingly make some assumptions. Please feel free to call me out in comments/tweets!

One assumption I'm knowingly making is that you're on a Unix-like platform. Sorry, Windows users.

Getting the JVM

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

danieldietrich

import javaslang.collection.Stream;
import javaslang.control.Option;
import java.io.Serializable;
import static javaslang.collection.Stream.*;
import static javaslang.control.Option.*;

/**
 * In Javaslang 2.0.2 zipWith is missing. I temporarily added it to Stream:
 * 
 * <pre><code>