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  Are college students learning?

In his State of the Union address last Tuesday, President Obama proposed several measures to lower college tuition. University leaders responded cautiously, warning that cost-cutting reforms might also cut into instructional quality. But here's the big open secret in American higher education: Most institutions have no meaningful way to measure the quality...

   College students,Learning,Survey     2012-02-02 07:10:02

  Manipulating JavaScript Arrays

Our first tutorial on JavaScript arrays covered the basics: creating arrays, accessing the contents of arrays, array lengths, and looping through arrays. In this tutorial, you explore arrays in more depth, and learn how to use various methods of the Array object to manipulate arrays. Extracting sections of an array with slice() You're not limited to accessing single array elements at a time. Thanks to the slice() method, you can grab a whole section of an array at once. slice() has the follow...

   JavaScript,Array,Manipulate,Join,Splice     2011-08-07 01:56:06

  About C++ comma operator precedence

When learning programming language, we will always have one topic about the operator precedence. Since there are many operators can be used in one expression, there should be some rules regarding which operation can happen first so that the compiler or interpreter can handle them correctly. One rule of programming with expression is using as much as brackets as you can to avoid unexpected results. Here we refer one problem we see online about the comma operator in C++. The following program has ...

   comma,precedence     2012-11-12 10:25:00

  How I explained MapReduce to my Wife?

Yesterday I gave a presentation at Xebia India office on MapReduce. It really went well and audience was able to understand the concept of MapReduce (as per their feedback). So, I was happy that I did a good job in explaining MapReduce concept to a technical audience (mainly Java programmer, some Flex programmer and few testers). After all the hard work and a great dinner at Xebia India office I reached back my home. My wife (Supriya) asked me “How was your session on …â...

   Java,MapReduce,Java Flex     2011-08-28 04:22:53

  Understanding the "this" keyword in JavaScript

Many people get tripped up by the this keyword in JavaScript. I think the confusion comes from people reasonably expecting this to work like “this” does in Java or the way people use “self” in Python. Although this is sometimes used to similar effect, it’s nothing like “this” in Java or other languages. And while it’s a little harder to understand, its behavior isn’t magic. In fact, this follows a relatively small set of simple rules. This...

   JavaScript,this,understanding     2012-03-29 13:48:59

  Why Emacs?

PreludeIf you are a professional writer – i.e., if someone else is getting paid to worry about how your words are formatted and printed – Emacs outshines all other editing software in approximately the same way that the noonday sun does the stars. It is not just bigger and brighter; it simply makes everything else vanish.Neal StephensonIn the Beginning … Was the Command LineI’m an Emacs user and I’m proud of the fact. I know my reasons for using it (and loving i...

   Emacs,Linux,IDE,Editor,Usage     2011-11-21 10:22:05

  A simple tutorial on GoLang connecting to Clickhouse

Go, also known as Golang, is a statically-typed, concurrent programming language created by Google. ClickHouse is a high-performance, column-oriented database management system that can be used for real-time data analysis. This tutorial will provide a deep dive into how to connect to ClickHouse from a Go program, including how to perform common database operations such as SELECT and INSERT statements. Before proceeding, it is assumed that you already have Go and ClickHouse installed on your mach...

   GOLANG,CLICKHOUSE,TUTORIAL     2023-02-11 07:05:36

  PHP sucks (but, some frameworks don't)

I started web development with PHP, and I've decided I've had enough. Why? Keep reading.PHP (the language) sucks. There, I said it. 1029380128301928301823 GlobalsObject system hacked onC extension system sucksDocumentation sucks (read more; no, I'm not drunk)Has a terrible communityAll in all, designed by total idiots. You've probably heard this a ton of times before, but, here it is again. THERE ARE JUST WAY TOO MANY GLOBALS. Why in the world does md5() need to be global? Do you serio...

   PHP,Sucks,Framework,Good,Bad Design     2011-11-20 07:08:16

  Cloud Computing’s most Basic Concepts-Service Models

With the containerization of Docker, Kubernetes, CNCF, and the development of open-source communities, related frameworks and technology is booming and iterating rapidly. Cloud Computing, been applied for many years, is pushing developers into the new technological era. Companies and developers who are not using or not planning to use Cloud-Native gradually feel tremendous pressure in keeping up with the technology trends. The first step is to understand the concepts of IaaS, PaaS, FaaS, SaaS, S...

   CLOUD,PAAS,IAAS,CONCEPT     2021-01-24 05:23:11

  Redesigning the Technical Hiring Process

Since my last post on technical interviews, I’ve been fairly involved in hiring at Pulse as we grew our team from 6 people when I joined last November to 14 full-timers. In my previous post, I suggested that technical interviews, in the conventional sense, are not especially effective (by technical interviews, I mean the traditional 45 minute coding-at-a-whiteboard and algorithm puzzlers interviews). Those do a great job of telling you how well a candidate is at acing those types o...

   Career,Recruitment,Process,Developer,Ski     2011-09-14 12:01:37

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