Val Programming

One months ago, I was asked what is functional programming? Although familiar with some of the concept of functional programming, the Little Schemer bought from Canada six months ago also read the previous chapters, that day is not able to answer what is functional programming. Functional programming is a strange field for programmers familiar with procedural programming, and concepts such as closures (closure), continuations (continuation), and currying are a nightmare for programmers with procedural programming. Without u ...

Translation: Esri Lucas The first paper on the Spark framework published by Matei, from the University of California, AMP Lab, is limited to my English proficiency, so there must be a lot of mistakes in translation, please find the wrong direct contact with me, thanks. (in parentheses, the italic part is my own interpretation) Summary: MapReduce and its various variants, conducted on a commercial cluster on a large scale ...

Developing spark applications with Scala language [goto: Dong's blog http://www.dongxicheng.org] Spark kernel is developed by Scala, so it is natural to develop spark applications using Scala. 　　If you are unfamiliar with the Scala language, you can read Web tutorials a Scala Tutorial for Java programmers or related Scala books to learn. This article will introduce ...

There are many cross-site scripting vulnerabilities in many domestic forums, and there are (quite a few) foreign (and many) more such examples, and even Google (also) has appeared, but was fixed in early December. (Editor's note: For cross-site scripting exploits, readers can refer to "Detailed XSS cross-site scripting attacks"). Cross-site attacks (very) easy to construct, and very subtle, not easy to be detected (usually steal information immediately after the jump back to the original page). How to attack, not to explain here ((and) Do not ask me), the main talk about how to prevent. First of all, cross-site scripting attacks are (due) to the user's ...

Usually the development of the thread is a thing, such as Tomcat is a servlet in the threads, there is no thread how do we provide multi-user access? But many developers who have just started to touch threads have suffered a lot. 　　How to do a set of simple threading Development Mode framework for everyone from the single thread development into multithreaded development, this is really a relatively difficult project. What is the specific thread? First look at what the process is, the process is a system executed a program, this program can use memory, processor, file system and other related resources ...

In the previous installment, I introduced the innovative way in which the next generation of Java language was used to eliminate the flashy things and complexities in the Java language. In this installment, I'll show how these languages eliminate some of the flaws in Java: exceptions, statements and expressions, and the edge of the http://www.aliyun.com/zixun/aggregation/19527.html ">null." The expression Java language inherits from the C language ...

Joe Roberts, once a SaaS product director, decided to change his job, and he decided he would continue to do so because of his extensive experience in the field of cloud computing. Roberts was previously a senior IT director and system engineer in charge of SaaS product development in the company, leaving last November. After that, he received a job offer from a number of companies, and Roberts eventually became a senior devo at Bit9 Company in Waltham, Massachusetts.