current return

Web page development, in many cases we need to manipulate the same class name elements, that is, class the same element. Yesterday to participate in the written exam, there is a related topic did not answer: JavaScript Gets the node with class test

$. Links {current: 0, key: [], val: {}, add: function (o) {this. key. push (o. hash); this. val [o. hash] o. url ;}, remove: function (hash) {for (i0; I & lt; this. key. length; I ++) {if (hash... $. Links = {Current: 0,Key: [],Val :{},Add: function

Heap sorting is the same as selecting sort directly. Heap sequencing is the use of a data structure-the heap to complete the sorting, the heap is an approximate complete binary tree structure, and at the same time meet the nature of the heap: that

PHP design pattern series-Iterator pattern (Iterator) 1. Pattern Definition The Iterator mode is also called the Cursor mode. Provides a method to access each element in a Container object without exposing the internal details of the object. When

Current page url Yii: app ()-> request-> url;Jump to the url of the previous page $ this-> redirect (Yii: app ()-> request-> urlReferrer );Root directory URL Yii: app ()-> baseUrl or Yii: app ()-> request-> baseUrl;Custom URL $ this-> createUrl

Definition: provides a method to access each element of an aggregate object sequentially without exposing the internal representation of the object.Applicable: When you need to access a clustered object and traverse all these objects, you should

Before delving into this design pattern, let's take a look at an interview question, a blog from bird brother, The topic is this: Enables an object to have a foreach loop like an array, requiring that the property be private. It is difficult to

: This article mainly introduces the design mode entry-iterator mode (php version). If you are interested in the PHP Tutorial, please refer to it. Before going into this design model, let's take a look at a interview question, from the blog of

When talking about Handler's logoff, we talked about how to obtain and set logoff through ThreadLocal, as shown below:Static final ThreadLocal sThreadLocal = new ThreadLocal ();When preparing logoff,Public static void prepare () {if (sThreadLocal.

All source code for this blog is from JDK 1.8 Reentrantlock, can be re-entered lock, is a recursive non-blocking synchronization mechanism. It can be equated to the use of synchronized, but Reentrantlock provides a more powerful and flexible

This article mainly summarizes the lock in the 5th chapter--java of the Art of Java concurrent programming.First, AQSAbstractqueuedsynchronizer (AQS), queue Synchronizer, is the underlying framework used to build locks or other synchronous builds.

ReentrantLock source code analysis for Java concurrent Series Before Java5.0, only synchronized and volatile can be used to coordinate access to shared objects. We know that the synchronized keyword implements the built-in lock, while the volatile

1Iteratorextendstraversable {2 /*Methods*/3 Abstract Public Mixed Current(void)4 Abstract PublicScalarKey(void)5 Abstract PublicvoidNext(void)6 Abstract PublicvoidRewind(void)7 Abstract Public Booleanvalid (void)8}Therefore, for this question,

Item 49: new handler action Item 49: Understand the behavior of the new-handler. newWhen the memory application fails"bad alloc"Exception.std::set_new_handler()The specified error handling function ("new-handler ").Set_new_handler () The

The activation mode of the activity is divided into: standard, Singletop, Singletask, singleinstance four kinds.Standard modeis the active default startup mode, which is the first contact mode when learning activity jumps. This startup mode ignores

We often use a lot of functions when using Excel. If you don't use a function, it proves that you are a novice in an Excel form. As the saying goes, do not use Excel functions, you can never be called a master of Office software. But there are still

Reentrantlock is a reentrant lock that can support a thread to repeatedly lock resources, and he also supports fair locking and unequal locking. The Synchronized keyword also implicitly supports re-enter, such as a recursive method of synchronized

Java-reentrant lock Reentrantlock Implementation principle At the implementation level, in addition to relying on CAS (compareandset) methods, it is also dependent on some methods in class Locksupport. First, Locksupport Class Locksupport is

Today, the use of Getelementsbyclassname wrote a small program, full of joy ready to test, in FF, Google and other mainstream browsers on the test is no problem, in the IE9 also no problem, in the IE6, 8 test when there is a problem, the browser

First, Reentranlock I believe we have all used Reentranlock,reentranlock is the concurrent package next to implement concurrency of the tool class (Reentrantreadwritelock, Semaphore, Countdownlatch, etc.), It is an exclusive lock like synchronized,