lysu

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called (Functional) Reactive Programming (FRP).

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.

lysu

package main

import (
	"bytes"
	"database/sql"
	"fmt"
	"log"
	"regexp"
	"strings"
	"text/template"

lysu

// ==UserScript==
// @name         jQuery For Chrome (A Cross Browser Example)
// @namespace    jQueryForChromeExample
// @include      *
// @author       Erik Vergobbi Vold
// @description  This userscript is meant to be an example on how to use jQuery in a userscript on Google Chrome.
// ==/UserScript==

// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {

lysu

my @ctypes=qw/0 1 0 1 1/;

while(<>) {
  chop;
  @F=split('\|', $_);
  print "insert into table values(";
  foreach my $col (@F) {
    my $type=shift(@ctypes);
    print ($type == 1 ? '"'.$col.'"' : $col);
    print ",";

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awk 'FNR==NR {A[$2];next;} !($2 in A)' file1 file2

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log4j.logger.com.ibatis=ALL
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=ALL
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=ALL
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=ALL
log4j.logger.java.sql.Connection=ALL
log4j.logger.java.sql.Statement=ALL
log4j.logger.java.sql.PreparedStatement=ALL
log4j.appender.ibatis.File = /home/robiplus/logs/ibatis.log
log4j.appender.ibatis.layout = org.apache.log4j.PatternLayout
log4j.appender.ibatis.layout.ConversionPattern = %p %d{yyyy-MM-dd HH:mm:ss} - %m%n

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func Example_reuse_socket_connection() {

	// Put two data: t1-data1, t1-data2 into mytube1.
	// and one data: t2-staff into mytube2
	master, err := beanstalk.Dial("tcp", "127.0.0.1:11300")
	if err != nil {
		panic(err)
	}
	master.Tube.Name = "mytube1"
	_, err = master.Put([]byte("t1-data1"), 1, 0, 5*time.Minute)

lysu

gc 1 @7.559s 0%: 0.041+2.4+3.4+1.7+1.2 ms clock, 0.16+2.4+0+2.1/0.80/0+5.0 ms cpu, 5->6->4 MB, 4 MB goal, 4 P
gc 2 @7.596s 0%: 0.037+2.6+1.5+0.67+2.2 ms clock, 0.11+2.6+0+0.12/0.13/1.9+6.8 ms cpu, 5->6->4 MB, 8 MB goal, 4 P
gc 3 @7.635s 0%: 0.11+1.5+0.21+3.3+0.73 ms clock, 0.33+1.5+0+0.12/2.8/0+2.2 ms cpu, 6->7->4 MB, 7 MB goal, 4 P
gc 4 @7.687s 0%: 0.12+1.7+0.87+1.4+0.54 ms clock, 0.37+1.7+0+1.8/1.0/0+1.6 ms cpu, 7->8->4 MB, 8 MB goal, 4 P
gc 5 @7.729s 0%: 0.052+1.9+0.60+1.4+0.42 ms clock, 0.15+1.9+0+2.4/1.1/0+1.2 ms cpu, 8->8->4 MB, 8 MB goal, 4 P
gc 6 @7.776s 0%: 0.19+9.9+0.30+0.60+0.47 ms clock, 0.57+9.9+0+11/0.46/0+1.4 ms cpu, 7->9->5 MB, 8 MB goal, 4 P
gc 7 @7.843s 0%: 0.10+3.0+0.58+0.41+0.43 ms clock, 0.43+3.0+0+3.4/0.22/0+1.7 ms cpu, 8->9->4 MB, 9 MB goal, 4 P
gc 8 @7.887s 0%: 0.12+5.1+0.054+0.91+0.66 ms clock, 0.50+5.1+0+5.2/0.71/0+2.6 ms cpu, 8->8->5 MB, 8 MB goal, 4 P
gc 9 @7.956s 0%: 0.088+4.8+0.032+1.7+0.51 ms clock, 0.35+4.8+0+5.5/1.4/0+2.0 ms cpu, 9->10->5 MB, 9 MB goal, 4 P
gc 10 @8.035s 0%: 0

lysu

gc 1 @3.265s 0%: 0.041+2.5+4.2+0.32+0.41 ms clock, 0.12+2.5+0+2.7/0.042/0+1.2 ms cpu, 7->9->8 MB, 4 MB goal, 4 P
gc 2 @3.273s 0%: 0.024+3.4+0.19+0.93+1.1 ms clock, 0.049+3.4+0+3.5/0.011/0+2.3 ms cpu, 9->21->21 MB, 12 MB goal, 4 P
gc 3 @3.279s 0%: 0.053+3.0+1.5+1.2+1.8 ms clock, 0.15+3.0+0+3.8/0.028/0+5.5 ms cpu, 22->38->37 MB, 19 MB goal, 4 P
gc 4 @3.288s 0%: 0.041+3.0+3.0+0.88+0.42 ms clock, 0.12+3.0+0+3.3/0.85/0+1.2 ms cpu, 38->44->43 MB, 42 MB goal, 4 P
gc 5 @3.297s 0%: 1.3+6.9+1.1+0.81+1.3 ms clock, 4.1+6.9+0+3.7/0.007/0+4.0 ms cpu, 52->64->53 MB, 76 MB goal, 4 P
gc 6 @3.313s 0%: 0.11+3.5+6.2+3.3+0.48 ms clock, 0.35+3.5+0+3.8/1.2/0+1.4 ms cpu, 66->71->45 MB, 82 MB goal, 4 P
gc 7 @3.675s 0%: 0.16+3.3+0.078+0.70+0.48 ms clock, 0.49+3.3+0+4.9/0.45/0+1.4 ms cpu, 78->86->14 MB, 80 MB goal, 4 P
gc 8 @3.682s 0%: 0.13+5.8+0.32+0.35+0.61 ms clock, 0.54+5.8+0+4.2/0.21/0+2.4 ms cpu, 15->29->27 MB, 11 MB goal, 4 P
gc 9 @3.691s 0%: 0.19+6.3+0.91+0.89+0.61 ms clock, 0.78+6.3+0+6.6/0.031/0+2.4 ms cpu, 29->54->54 MB, 27 

lysu

gc 1 @2.957s 0%: 0.10+3.0+2.3+0.72+2.3 ms clock, 0.30+3.0+0+2.9/0.45/0+7.1 ms cpu, 31->35->20 MB, 4 MB goal, 4 P
gc 2 @2.967s 0%: 0.061+2.7+7.8+0.56+1.7 ms clock, 0.24+2.7+0+3.3/0.21/0+7.1 ms cpu, 21->36->23 MB, 32 MB goal, 4 P
gc 3 @2.981s 0%: 0.81+2.4+5.2+1.0+0.74 ms clock, 3.2+2.4+0+3.0/0.027/0+2.9 ms cpu, 24->34->24 MB, 16 MB goal, 4 P
gc 4 @2.993s 0%: 0.060+2.4+3.3+0.79+0.90 ms clock, 0.24+2.4+0+3.4/0.063/0+3.6 ms cpu, 25->33->31 MB, 28 MB goal, 4 P
gc 5 @3.002s 0%: 1.0+2.9+0.55+0.95+1.1 ms clock, 4.3+2.9+0+2.7/0.29/0+4.4 ms cpu, 36->47->37 MB, 48 MB goal, 4 P
gc 6 @3.010s 0%: 0.082+3.5+0.62+1.0+0.34 ms clock, 0.32+3.5+0+2.5/0.55/0+1.3 ms cpu, 45->54->44 MB, 53 MB goal, 4 P
gc 7 @3.021s 0%: 0.091+3.9+0.071+0.20+0.40 ms clock, 0.36+3.9+0+2.9/0.054/0+1.6 ms cpu, 70->81->43 MB, 71 MB goal, 4 P
gc 8 @3.031s 0%: 0.78+4.4+1.5+2.8+0.74 ms clock, 2.3+4.4+0+3.7/0.086/0+2.2 ms cpu, 64->75->30 MB, 65 MB goal, 4 P
gc 9 @3.044s 0%: 0.36+4.5+0.043+0.19+0.31 ms clock, 0.73+4.5+0+4.5/0.038/0+0.63 ms cpu, 38->48->37 MB,