v6ak

// Mohli bychom se hádat, jestli tato funkce mění stav, ale referenčně transparentní rozhodně není:
def f = new java.io.File("/tmp").exists

// Tato funkce nemění stav, ale referenčně transparentní není:
def g(x: String) = new java.io.File(x).exists

object Foo{
	var invocationCount: Int = 0
	
	def h(x: Int){

v6ak

// Some plain classes with subclasses
class Foo
class SubFoo extends Foo
class SubSubFoo extends SubFoo
class SubSubSubFoo extends SubSubFoo

// A generic class
class Bar[T <: Foo](val foo: T) {

}

v6ak

// Toto odsazení je divné:
case class User(nick: String,
                name: String,
                email: String)


// Spíš bych použil:
case class User(
	nick: String,
	name: String,

v6ak

$ java -jar clojure-1.5.1.jar
Clojure 1.5.1
user=> (defn plus-2-1 [n] (+ 2 n)) ; stary a nudny zpusob
#'user/plus-2-1
user=> (def plus-2-2 (partial + 2)) ; partial application
#'user/plus-2-2
user=> (def plus-2-3 (comp inc inc)) ; kompozice funkci
#'user/plus-2-3
user=> "první měření"
"první měření"

v6ak

$ java -jar clojure-1.5.1.jar
Clojure 1.5.1
user=> (defn plus-2 [n] (+ 2 n)) ; stary a nudny zpusob
#'user/plus-2
user=> (time (dotimes [n 10000000] (plus-2 n)))
"Elapsed time: 144.448077 msecs"
nil
user=> (time (dotimes [n 10000000] (plus-2 n)))
"Elapsed time: 85.961736 msecs"
nil

v6ak

object NewHelloWorld extends App{
    println("Hello world!")
}

v6ak

	val key: PGPPublicKey = ...
	
	def encrypt(plaintext: String): String = {
		val baos = new ByteArrayOutputStream()
		val literalDataGenerator = new PGPLiteralDataGenerator()
		val comData = new PGPCompressedDataGenerator(CompressionAlgorithmTags.ZLIB)	// I've also tried other compression algorithms
		val bytes = plaintext.getBytes("utf-8")
		val BufferSize = 1 << 16
		import resource.managed // The "managed" method with for is just a nice replacement of try/catch/finally{x.close()}
		for{

v6ak

// An ugly hack for Bittorrent sync; hope to write more later

// separate function for easier debugging
show = function(x){console.log(["X:"+x.folders.map(function(x){return {folder: x, active_peers: x.peers.filter(function(peer){return peer.down_diff || peer.up_diff;})};}).filter(function(x){return x.active_peers.length > 0;}).map(function(x){return x.folder.name;})])}

var origRequest = utWebUI.request; utWebUI.request= function(a, e, d, b){return origRequest.call(this, a, function(f){e && e(f); console.log(f.folders);}, d, b); };

v6ak

/dev/mapper/largetmp1                                           /tmp/large              ext4    noauto,nosuid,noatime,delalloc,nobarrier,data=writeback,commit=36000    0       0

v6ak

#include <iostream>
#include "json.h"

using namespace std;

int main() {
    Json::Number num(3.14159265358972);
    Json::String s("5.\" ' \1 0");
    Json::Boolean t(true);
    Json::Boolean f(false);