learn salesforce from scratch

Learn android from scratch (BroadCast. 45 .) Similar to Service, there is also one of the four main components running in the background in android, which is broadCcast, but he does not need to consider whether there are accepted objects, just consider sending. We can use either of the following methods to use BroadCast: 1. Configure broadCcast in the configuration file. Second, bind broadCcast to the class

provides some performance improvements.Finally we get a very safe and well-structured code:;(function ($,window,document,undefined) {Our code:blah blah blah ...}) (jquery,window,document);And as for this undefined, it is very interesting, in order to get unmodified undefined, we did not pass this parameter, but received it when received, because the actual is not transmitted, so ' undefined ' that position received is the real ' Undefined ' out. It is a technology and a way of thinking that des

}); Topic.subscribe ("MM", function (text)//Accept message, first parameter is message name, second parameter is callback function {alert (text);});});Code Explanation:① initially has two buttons: "Test 1" and "Test 2". Test after 1 click Alert, Test 2 Click to create a New button (can be created multiple times), New button click after alert② about alert behavior: After a click is not a direct alert, but a push message via topic.publish. The first parameter of the push is the message name (uniqu

object. The sample code is as follows:Let Host:cfhost =cfhostcreatewithname (Kcfallocatordefault, "127.0.0.1"). Takeretainedvalue () Let hostnames: Cfarray =cfhostgetnames (host, nil)!. Takeunretainedvalue ()Welcome to follow Dongsheng Sina Weibo@tony_Dongsheng. Learn about the latest technical articles, books, tutorials and information on the public platform of the smart Jie classroom650) this.width=650; "title=" 00.png "src=" http://s3.51cto.com/wy

Type methods Subscript Content such as nested types can also be extended, and extensions can also comply with protocols.Welcome to follow Dongsheng Sina Weibo@tony_Dongsheng. Learn about the latest technical articles, books, tutorials and information on the public platform of the smart Jie classroom?More ProductsIOS,Cocos, mobile Design course please pay attention to the official website of Chi Jie Classroom:http://www.zhijieketang.comSmart-J

the button.If you call the following parameter-free method:Func OnClick () {}The calling code is as follows:Button.addtarget (Self, Action: "OnClick", êforcontrolevents:uicontrolevents.touchupinside)The difference is that the action parameter "OnClick" method name differs, and the colon of the action parameter method name implies that the method name should have several parameters. If the method to be called is the following 3 parameter forms:Func OnClick (Sender:anyobject, Forevent even

keyword, which indicates that this is a mutation method. call method calculates interest, invokes its instance 10_ 000.00 interest1 call method to calculate interest, we cannot use 10_ 000.00 instance calls, but requires a double interest2 interestby2 is the mutation method that directly alters the variable interest2 interest2.interestby2 () After the statement call is complete, the variable interest2 The value of called InterestBy3 method calculates the interest,

the unpacking, the code is modified as follows:Print (Emp.dept!.comp!.name)However, there is a drawback to the display of unpacking, if a link in the optional chain is Nil , it will cause code run-time errors. We can use a more "gentle" way of quoting, using a question mark (? ) to replace the original exclamation point ( ! ), as shown here:Print (Emp.dept?.comp?.name)Welcome to follow Dongsheng Sina Weibo@tony_Dongsheng. Learn about the latest techn

. Learn about the latest technical articles, books, tutorials and information on the public platform of the smart Jie classroom650) this.width=650; "title=" 00.png "src=" http://s1.51cto.com/wyfs02/M01/7C/BF/wKiom1bXmlyyvPsYAAAs2MBEZnc731.png "alt=" Wkiom1bxmlyyvpsyaaas2mbeznc731.png "/>More ProductsIOS,Cocos, mobile Design course please pay attention to the official website of Chi Jie Classroom:http://www.zhijieketang.comSmart-Jie Classroom Forum Web

type. References type extension ConstructorsExample of defining constructors in an extension class:classperson{ varname:stringvarage: intfuncdescription () ->String{ return "\ (name) Age is: \" } init (Name:string,age:int) { self.name=nameself.age= age}}extensionPerson{ //defines the extension type of the person class convenienceinit (name: string) {//Convenient constructor self.init ( Name:name,nbsP;AGENBSP;:NBSP;8) }}letp1=person ( name: "Mary") //calls the constructor of the two parameter,

want to let the error spread, you can use try! statement. Modify the above code as follows://querying all Data Methods Funcfindall () throws->[Note]{ guardlistData.count>0else{ //throws "no data" error. throwDAOError.NoData} returnlistdata}funcprintnotes () { letdatas=try!findall () ① fornoteindatas{print ("Date:\ (note.date!) -content:\ (note.content!) ") }}printnotes () ② Code printnotes () The function does not declare a throw error and does not need to be called when calling it Try ke

the constructor that calls them. Note: The class is declared as Let constant is still var What about the variables? The class is generally declared as a Let constant from the programming process, because the class is a reference data type, and declaring that a let constant simply means that the reference cannot be modified, but the object that the reference points to can be modified. Welcome to follow Dongsheng Sina Weibo@tony_Dongsheng. Learn abo

Learn Swift from scratch (Day 52)-Cocoa error handling modeThe Swift error handling mode is different in Swift1.x and Swift 2.0. The error handling mode of Swift 1.x Code adopts the Cocoa framework error handling mode. Currently, Objective-C still adopts this mode, while the do-try-catch error processing mode is adopted after Swift2.0. The following sample code reads a string from the file to the memory. If

() Let Hostnames:cfarray = Cfhostgetnames (host, nil)!. Takeunretainedvalue ()Welcome to follow Dongsheng Sina Weibo@tony_Dongsheng. Learn about the latest technical articles, books, tutorials and information on the public platform of the smart Jie classroom?More ProductsIOS,Cocos, mobile Design course please pay attention to the official website of Chi Jie Classroom:http://www.zhijieketang.comSmart-Jie Classroom Forum Website:http://51work6.c

From scratch learn JAVA-3. Store and modify variable information in the program, java-3 variable 1. Create a variable; 2. Use different types of variables; 3. Store values in variables; 4. Use variables in mathematical expressions; 5. Assign the value of a variable to another variable; 6. Increment/decrease the value of the variable. Program Variable: use different types of variables and assign initial valu

Learn Java-8 from scratch. Create the first object and the first object in java-8 1. Create an object;2. Use attributes to describe objects;3. Determine the behavior of the object;4. merge objects;5. inherit from other objects;6. Convert the object and other types of information. Program NewRoot2: calculates the square root of the input number and outputs 1 package com.jsample; 2 3 public class NewRoot2

From scratch learn JAVA-1. Write the first Java program, java-1java Write the first Java program Complete: 1. Enter a Java program in the text editor. 2. use parentheses to organize programs. 3. Save, compile, and run the program. 1 package com. jsample; // name the program package as com. jsample2 3 public class Helloworld {// name the program (class) as Helloworld4 public static void main (String []

press a key."Common DOM Events: Mouse Events Keyboard Events Form Events Document/Window events Click KeyPress Submit Load DblClick KeyDown Change Resize MouseEnter KeyUp Focus Scroll MouseLeave Blur Unload Example: When we click on the P element, it disappears$ (document). Ready (function () { $ ("P"). Click (functi

(file2), bw = new BufferedWriter (FW); Bw.write (sbff.tostring ());} catch (FileNotFoundException e) {//Todo auto-generated catch Blocke.printstacktrace ();} catch (IOException e) {//Todo Au To-generated catch Blocke.printstacktrace ();} Finally{try {br.clOSE (); Bw.close ();} catch (IOException e) {//TODO auto-generated catch Blocke.printstacktrace ();}}}then the code that generates the method class:Finally, the code that generates the view interface: Copyright NOTICE: This article for Bo Mast

PHP, as a hypertext preprocessing language, is equivalent to some logical processing before Apache returns the response result. PHP is responsible for the logical processing of the language, PHP as a module of Apache, the life cycle is dependent on the operation of Apache.Unlike Apache, which starts PHP parsing PHP scripts, the benefit of opening fastcgi,fastcgi is to separate PHP from the server instead of PHP as a module. FastCGI a communication interface that interacts with the server for PHP