ambiente direct

Object Direct Volume creates an object:var obj = {x:[1,2],y:23};The code is the same as below.var obj=new Object ();Obj.x=new Array (UP);obj.y=23;Test:for (var i in obj) alert (obj[i]);function Direct Amount : it is an expression rather than a statement.(function () {}) ()The following example:(function () {document.write ("Some script code");})()var a= (function (s) {return s}) ("abc");alert (a);var b=func

Direct object volume, direct array volume, and direct function volume Object Direct VolumeCreate an object: VaR OBJ = {X: [1, 2], Y: 23 }; CodeIt is the same as below. VaR OBJ = new object (); OBJ. x = new array (1, 2 );OBJ. Y = 23; Test:For (var I in OBJ) Alert (OBJ [I]); Function quantity: It is an e

Multiple variable definitions of js (Object direct volume, array direct volume, and function Direct Volume) can be referenced by you. It will be helpful for future study of js orientation and json operations. Directly create an object: The Code is as follows: Var obj = {x: [1, 2], y: 23 }; The Code is the same as below. The Code is as follows: Var obj = new

Object Direct amount to create an object: Copy Code code as follows: var obj = {x:[1,2],y:23}; the code is the same as the following. Copy Code code as follows: var obj=new Object (); Obj.x=new Array (1,2); obj.y=23; Test: Copy Code code as follows: for (var i in obj) alert (obj[i]); function Direct Quantity: it is an expression rather

body each time it is executed and creates a new function object. Therefore, it is very inefficient to call function () constructor in a loop or frequently executed function. On the contrary, function literal is not re-compiled every time. When using function () to construct a function, it does not follow the typical scope. It always treats it as a top-level function for execution. Copy code The Code is as follows: var y = "Global "; Function constructfunction (){ Var y = "local "; Return ne

and creates a new Function object. Therefore, it is very inefficient to call Function () constructor in a loop or frequently executed Function. On the contrary, function literal is not re-compiled every time.When using Function () to construct a Function, it does not follow the typical scope. It always treats it as a top-level Function for execution.Copy codeThe Code is as follows:Var y = "global ";Function constructFunction (){Var y = "local ";Return new Function ("return y"); // The local var

Next, let's take a look at what direct paths are and the advantages and restrictions of using direct paths. The article is taken from "Oracle? DatabaseAdministratorsGuide11gRelease2 (11.2) "(of course, the Chinese annotation is not in the official documentation) ImprovingINSERTPerformancewithDirect-PathINSERTWhenloadinglarge Next, let's take a look at what direct

转载于：http://crmky.spaces.live.com/Blog/cns!8C989768DB1A6B14!458.entry?sa=254330365 这两种类型的ByteBuffer相信大家都知道，但是两者的区别在什么地方呢。在不同的环境下采用哪种类型的ByteBuffer会更有效率呢。 Let's explain the difference between the two: Non-direct Bytebuffer Memory is allocated on the heap, directly by the Java Virtual machine responsible for garbage collection, you can think of it as a byte array of wrapper class, as the following pseudo code shows: Heapbytebuffer extends Bytebuffer {by

The concept of direct buffers versus non-direct buffers: 1) Non-direct buffer: throughStatic Bytebuffer allocate (int capacity)Created buffers that are created in memory in the JVM, before or after each call to a native IO of the underlying operating system, the virtual machine copies the contents of the buffer to the intermediate buffer (or copies the conte

Two ways to improve performance using direct-path insert: direct-pathinsert1. Traditional serial insert There are two common insert methods: (1) insert into table_name values (....) (2) insert into target_table select * from source_table The above two general plug-ins are inserted in the serial mode by default. The insert data will be written to buffer_cache. check whether there is free space in the block i

1. Traditional Serial Insert MethodThere are two common insert methods:(1) INSERT INTO table_name values (...)(2) INSERT into target_table select* from source_tableThe above two general plug-in, the default is in the serial mode of insertion, the insert data will be written to Buffer_cache, inserted in the Pre-check table in the block where there is free space can be appended to insert, and write to redo log and undo data.2. Direct path (

Direct buffers vs. non-direct buffers:Non-direct buffers: allocates buffers through the allocate () method, setting buffers in the JVM's memoryDirect buffer: Allocates a direct buffer through the Allocatedirect () method, establishing the buffer in physical memory. can improve efficiency The byte buffers are e

Oracle's traditional Export and Import are retained to 11 GB, and many enterprises still use Export and Import to back up and restore 9i and 10 Gb. Since Oracle 7.3, the traditional exp Export Program provides two Export Path methods: Conventional Path Export and Direct Path Export ). This article describes the performance of traditional import and export by a recent customer. 1. Differences between the twoA. Conventional path ExportThe traditional pa

Now, Android's Wi-Fi-enabled direct point-to-point (peer-to) Android system is powered by devices and other types of devices that do not have a connection between a hotspot or an Internet connection. Android Framework provides a set of Wi-Fi peer APIs that allow you to discover and connect to other devices when each device's Wi-Fi direct support, and then communicate across distances far longer than Bluetoo

Using Network Service Discovery, showed you how to discover services that are connected to a local network. however, using Wi-Fi Direct trad; Service Discovery allows you to discover the services of nearby devices directly, without being connected to a network. you can also advertise the services running on your device. these capabilities help you communicate between apps, even when no local network or hotspot is available. While this set of APIs is

Direct insertion of sorting algorithms and direct insertion of sorting algorithmsInsert the sorting definition directly:Each time the first element is extracted from the unordered table, it is inserted to the proper position of the ordered table, so that the ordered table is still ordered. Directly inserted sorting is a stable sorting. The worst time complexity is O (n ^ 2), and the space complexity is O (1

I think this should be a lot of people to discuss, I 13 years when the framework has been made, you can run 80% apk, but I am more lazy has not been to write a summary of some of these ideas, today to share with you,Similar Items http://git.oschina.net/lody/Direct-load-apkFirst, let's explore how an APK is started,OK, first you have to install this apk, then you click on the icon, the result apk will start, see the screen, complete.First question: Wha

Direct insert sorting (recursive and non-Recursive Implementation methods), direct insert Recursion An array has n elements. If the first n-1 elements have been sorted, insert the n-th element to the first n-1 elements so that the arrays are sorted in an orderly manner. As for how the n-1 elements have been sorted first, we can assume that the previous N-2 elements have been sorted, insert the n-1 elements

1. Under the Standby page, select "Application". 2. Click "Set". 3. Slide up the screen and select "Accessibility". 4. Select "Direct Access". 5. Click on the slider on the right side of "off" to show that the "on" representative is open. 6. Click on the right slider that requires direct access to the option, and the Green Representative is open, here to select "

How to implement one-click direct call by phone number on the webpage _ example and one-click direct call How to implement one-click direct call by phone number on the webpage Problem: When you open a website through a mobile phone, you need to click the phone number to bring up the outgoing call menu. Method: Use the tel property of the hyperlink as follows