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Leslie Wen
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Lives in shanghai
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Leslie Wen

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select distinct on (b.memid) surname, firstname, b.memid, starttime from cd.bookings as b join cd.members as mem on mem.memid = b.memid where starttime > '2012-09-01' order by b.memid, starttime;


select mems.surname, mems.firstname, mems.memid, min(bks.starttime) as starttime
from cd.bookings bks
inner join cd.members mems on
mems.memid = bks.memid
where starttime >= '2012-09-01'
group by mems.surname, mems.firstname, mems.memid
order by mems.memid;



https://pgexercises.com/questions/aggregates/nbooking.html
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Leslie Wen

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Angular1 与 Angular 2 的比较
With Angular 2.0 fast approaching and the world of frontend frameworks in a massive transition, there's been a lot of concern about the impending costs of moving to the next generation of Angular. Do developers have to learn yet another new framework? Few teams have spent as much time with A
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Leslie Wen

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Return to book · Review this book · About the author · Introduction · 1. Go Environment Configuration · 1.1. Installation · 1.2. $GOPATH and workspace · 1.3. Go commands · 1.4. Go development tools · 1.5. Summary · 2. Go basic knowledge · 2.1. Hello, Go · 2.2. Go foundation · 2.3.
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Music is for everyone. Play with simple experiments that let anyone, of any age, explore how music works.
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A more correct solution (when dealing with time-zones) 处理时间差
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Leslie Wen

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youtube 的翻译现在变得越来越准确了, 而且字幕跟语速匹配, 貌似是即时翻译的。很喜欢
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https://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-mac.html



下载 flash 文件, 然后更新。通过官网上的更新插件,更新基本上是失败的
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Use this step-by-step guide to troubleshoot Adobe Flash Player installation issues on a Mac.
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This is #1 in a very long series of posts on Stack Overflow’s architecture. Welcome.To get an idea of what all of this stuff “does,” let me start off with ...
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Relearning C
There's lots of languages you can learn, from PHP and Python, to Erlang and Clojure, but last week I decided to get back to learning C. Yep C. This might seem like a strange decision to make, deciding to relearn C, especially after so many years living and breathing dynamically typed languages ...
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Have him in circles
51 people
Alex Lee's profile photo
Jon Xie's profile photo
多一次玩's profile photo
Leo Lai's profile photo
微笑嘻嘻's profile photo
Xiong Owen's profile photo
严二's profile photo
WILLIAM DANNEY's profile photo
Susanna Paul's profile photo
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Leslie Wen's +1's are the things they like, agree with, or want to recommend.
unable to start logstash as a service - Google Groups
groups.google.com

unable to start logstash as a service, Abi, 2/24/14 8:19 PM. Hi, I'm not a linux super user so have limited scripting capabilities. I'm tryi

guava-libraries - Guava: Google Core Libraries for Java 1.5+ - Goog...
code.google.com

Project Information. Activity High; Project feeds; Code license; Apache License 2.0; Labels Java, Libraries, Google, Collections, MapMaker,

goagent
code.google.com

a gae proxy forked from gappproxy/wallproxy

Function.apply and Function.call in JavaScript
odetocode.com

In order to explain how the createDelegate function works in the last post, we have to understand JavaScript closures and Function.apply().

JavaScript pattern and antipattern collection
shichuan.github.com

A JavaScript pattern and antipattern code collection that covers function patterns, jQuery patterns, design patterns, general patterns, lite

vimperator-labs
code.google.com

Creating efficient user interfaces for existing applications

Twitter / 馬走日: 虽然已经不在学术界了,但看到这样的文献管理工具,还是 ...
twitter.com

虽然已经不在学术界了,但看到这样的文献管理工具,还是忍不住要推荐一下。ReadCube,内置PDF标注功能,自动论文匹配功能,检索导入等功能。类似于Mac下的工具Papers,但是这个免费。 http://t.co/3F2R3R2r

RubyKoans: 透過單元測試來學習 Ruby 語法
ihower.tw

http://rubykoans.com/ 是 EdgeCase 所推出的 Ruby 學習工具。它的特別之處在於它是用單元測試填空題的方式來認識Ruby語法。要執行很簡單,下載之後,輸入 rake 就會開始跑測試了(如何安裝Ruby請參考這裡),例如以下的測試:. def tes

roadrunner
code.google.com

用ruby写的一个类似LoadRunner框架的性能测试工具

LIVE! Google Code Samples
googlecodesamples.com

code.google.com. HTML5; PHP .NET; Java; Python; Ruby; JavaScript; Tools. Server Clock: Server-Sent Events, <canvas>, PHP [source]; Off

Creating a genetic algorithm for beginners.
www.theprojectspot.com

An introduction to genetic algorithms (GA) for beginners. Step by step guide of how to create a basic binary GA in JAVA.

java - Understanding javap's output for the Constant Pool - Stack Overflow
stackoverflow.com

up vote 2 down vote favorite. share [fb] share [tw]. When running javap on a very simple HelloWorld application I have some confusion on the

Katz Got Your Tongue?
yehudakatz.com

JavaScript Needs Blocks. January 10th, 2012. While reading Hacker News posts about JavaScript, I often come across the misconception that Ru

library net/http
doc.ruby-lang.org

All Libraries > library net/http. library net/http. 要約. 汎用データ転送プロトコル HTTP を扱うライブラリです。 実装は [RFC2616] に基きます。 使用例. ウェブサーバからドキュメントを得る (GET).

Why I love Common Lisp and hate Java
kuomarc.wordpress.com

"Common what?" is a common reply I get when I mention Common Lisp. Perhaps rightly so, since Common Lisp is not all that common these days.

Metaprogramming in Ruby: It’s All About the Self « Katz Got Your Tongue?
yehudakatz.com

Blog. Yehuda Katz is a member of the Ruby on Rails core team, and lead developer of the Merb project. He is a member of the jQuery Core Team

XtraFinder adds Tabs and features to Mac Finder.
www.trankynam.com

XtraFinder add Tabs and features to Mac Finder. • Tabs. • Dual Panel & Dual Window. • Arrange folders on top. • Cut & Paste. • Global hotkey