kduy

Remove MySQL completely

1. Open the Terminal

2. Use mysqldump to backup your databases

3. Check for MySQL processes with: ps -ax | grep mysql

4. Stop and kill any MySQL processes

5. Analyze MySQL on HomeBrew:

brew remove mysql

kduy

[user]
	name = Pavan Kumar Sunkara
	email = pavan.sss1991@gmail.com
[core]
	editor = vim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	excludesfile = ~/.gitignore
[sendemail]
	smtpencryption = tls
	smtpserver = smtp.gmail.com

kduy

Using Homebrew to manage Node.js and io.js installs on OSX

Having both Node.js and io.js installed with NVM was giving me a load of problems, mainly with npm. So I uninstalled NVM and manage Node.js and io.js with homebrew.
Heres how.

Install Node.js and io.js

$ brew install node
$ brew install iojs

kduy

import scala.language.experimental.macros
import scala.reflect.macros.blackbox.Context

object Macros {
  def getValue(varName: String) = macro getValueImpl
  
  def getValueImpl(c: Context)(varName: c.Expr[String]): c.Expr[Any] = {
    import c.universe._
    val name = varName.tree match {
      case  Literal(Constant(x: String)) => x

kduy

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

kduy

Scala macros tutorial, using sbt

The following steps executed in order will;

• create the project file structure
• set the sbt version
• add the gen-idea sbt plugin (if you want to import your project into intellij)
• create an sbt build, that builds the macros project prior to the macrostest project (so the regex macro is usable in the macrostest project)
• create the macros project scala file
• create the macrostest project scala file

kduy

organization := "net.seratch"

name := "sandbox"

version := "0.1"

scalaVersion := "2.9.1"

libraryDependencies ++= Seq(
  "junit"          % "junit"     % "4.9"   withSources(),