current return

Today I check on the Internet "JS to findan array of elements of the least common multiple ", whether it is Google or Baidu, the answer is found to be the same, the most critical is that it is wrong. Where's the mistake? Just look at the feeling is

You typically use getElementsByTagName ("*") to remove all elements of a document, and then iterate through it, using regular expressions to find matching elements to return to an array. Because IE5 does not support document.getElementsByTagName ("*"

A copy of Tencent Entertainment channel focus Map Carousel Plug-in Ui3g.js Copy Code code as follows: /* Top Big picture scrolling */ var slide = (function () { var quadeaseout; var doc = document; var $ = function (s) { return

Promises and Design Patterns Well written long good long long ~ The traditional way to solve a Javascript asynchronous event is to call a callback function, invoke a method, then give it a function reference, and execute the function

Semaphore is a count semaphore. Conceptually, semaphores maintain a set of licenses. If necessary, each one is blocked before the license is available acquire() , and then the license is acquired. Each release() add a license, which may release a

This article transferred from: http://www.infoq.com/cn/articles/java-memory-model-5Lock Release-Get established happens before relationshipLocks are the most important synchronization mechanism in Java concurrent programming. The lock allows the

Function Function The function in JS Create a function Execute function The core principle of function in JS Formal parameters and arguments in a function Arguments in a function

One, processes, and threads1. What is a processA process is an application that is running in the systemEach process is independent, with each process running in its dedicated and protected memory space For example, open QQ, Xcode at the same

The Java JDK's container class sorting algorithm uses mainly insert sorting and merge ordering, which may differ from implementation of different versions, with key code as follows: Copy Code code as follows: /** * Performs a sort on the

1. Establishing a database connection Copy Code code as follows: $mysqli = new Mysqli ("localhost", "root", "" "," mydb "); ?> Establishing a database connection requires four parameters, namely the database address,

Remove the annotations in C code,1. Single note//;2. Multi-line annotation/**/;3. A single-line comment ends with "\" and the next line is also commented;4. The annotations in the string are not processed.Said to be C language, but in fact all of

Copy Code code as follows: Class Fibonacci implements iterator { Private $previous = 1; Private $current = 0; Private $key = 0; Public function current () { return $this->current; } Public Function key () { return $this->key; }

Problem:Give a one-way list and turn it upside down. For example: a-> b-> c->d in turn is D-> C-> b-> A. Analysis:Suppose the structure of each node is: Copy Code code as follows: Class Node { char value; Node Next; }

(a) Addevent The most popular version on the web is Scott Andrew, who is said to have played a game in the JavaScript world (which we can see on page 100th of Pro JavaScript techniques) or browse the PPK Web site to solicit the functions for adding

Reentrant: A thread can acquire locks multiple times in a row lock Lock.lock () Get lock Final void Lock () { acquire (1); } Quite simply, the call to the Acqire function, followed by parameter 1, indicates that if a

Reentrantlock is a lock that supports re-entry, which means that the lock supports a thread's repeated lock on the resource, which in addition supports the fairness and unfairness of the acquisition lock. 1 The realization of the re-entry For the

There are many implementation classes of lock in the Java.util.concurrent.locks package, commonly used in Reentrantlock, Readwritelock (Implementation class Reentrantreadwritelock), Its realization all relies on

Aqs blocking Queue management Informationhttp://blog.csdn.net/wangyangzhizhou/article/details/42048453http://moon-walker.iteye.com/blog/2406446 Self-rotating lock &CLH Lock Craig, Landin, and Hagersten's CLH lock. In Aqs, there is an internal class

1. What is read and write lock It is possible to allow multiple read threads to access at the same time, or locks that are blocked by all read threads and other write threads when the write thread is accessed. Read-write lock in two, divided into a

Reprint please indicate the source: Http://blog.csdn.net/luonanqin A recent study of concurrent packages in JDK has been divided into three parts, thread management, lock operations, and atomic operations. Thread management is usually used more