mikearnaldi

• What do you think about ZIO’s typed errors? How do you think they help to write better applications?

Having typed errors is fundamental in order to write code that takes care of handling the edge cases, if you don’t have type information when calling a specific effect you cannot know what you may need to handle. At the moment typed errors are still limited in usability by Scala’s capabilities of dealing with unions, namely in Scala 2 unions are represented as sealed traits and you are forced to have an AppError tree with beneath a hierarchy of errors instead with the advent of Scala 3 it will be possible to represent errors using unions getting rid of the need for a big tree of sealed traits.

• What do you think are the advantages of ZIO’s Fibers over Threads, when writing concurrent applications?

Fibers are extremely lightweight compared to threads and in ZIO they provide even a more rich api and set of capabilities. One of the huge innovations that ZIO introduces is the concept of a fork scope and a su

mpilquist

// Save as ~/.ammonite/predef.sc
// To use fs2 from ammonite repl, type `load.fs2` from repl prompt.
// You'll get all fs2 & cats imports, ContextShift and Timer instances
// for IO, and a globalBlocker

import $plugin.$ivy.`org.typelevel:::kind-projector:0.11.0`

if (!repl.compiler.settings.isScala213)
  repl.load.apply("interp.configureCompiler(_.settings.YpartialUnification.value = true)")

dacr

David's programming examples knowledge base

• Generated by code-examples-manager release 2.4.7-SNAPSHOT
• 611 published examples

akka-pekko

• akka-actors-hello-world.sc : Simple akka hello world example
• akka-capitalize-and-print.sc : dump capitalized string coming from stdin using streams
• akka-http-client-json-stream.sc : Fully asynchronous http client call with json streamed response using akka-http will work in all cases, even with chunked responses !
• akka-http-client-json-with-proxy.sc : Fully asynchronous http client call with json response using akka-http will work in all cases, even with chunked responses, this example add automatic http proxy support.
• [akka-http-client-json.sc](https:/

novemberborn

Assuming you received the certificate in DER form, saved to cert.der:

openssl x509 -inform der -in cert.der -out chain.pem

Append the content of https://letsencrypt.org/certs/lets-encrypt-x1-cross-signed.pem.txt to chain.pem.

vrischmann

realm=Sonatype Nexus Repository Manager
host=nexus.company.com
user=admin
password=admin123

bobuss

Object Calisthenics outlines 9 basic rules to apply when performing the exercise:

• One level of indentation per method.
• Don't use the ELSE keyword.
• Wrap all primitives and Strings in classes.
• First class collections.
• One dot per line.
• Don't abbreviate.
• Keep all classes less than 50 lines.
• No classes with more than two instance variables.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

rweald

name := "DES and AES encryption in Scala"

version := "1.0"

scalaVersion := "2.9.1"

libraryDependencies += "commons-codec" % "commons-codec" % "1.6"

mumoshu

name := "DES encryption in Scala"

version := "1.0"

scalaVersion := "2.9.1"

libraryDependencies += "commons-codec" % "commons-codec" % "1.6"