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Stateful iterators carry some additional information about the current state of the iterator. Using Tables The addition state can be packed into the generic for loop's invariant state. local function chars_iter(t, i) local i = i + 1 if i <= t.len then return i, t.s:sub(i, i)...

Example A var i,a,b,len; a = {x:0,y:0} function test(){ // return object created each call return {x:0,y:0}; } function test1(a){ // return object supplied a.x=0; a.y=0; return a; } for(i = 0; i < 100; i ++){ // Loop A b = test(); } for(i = 0; i < 100; ...

Without a try catch block, undefined functions will throw errors and stop execution: undefinedFunction("This will not get executed"); console.log("I will never run because of the uncaught error!"); Will throw an error and not run the second line: // Uncaught ReferenceError:...

Think of the mediator pattern as the flight control tower that controls planes in the air: it directs this plane to land now, the second to wait, and the third to take off, etc. However no plane is ever allowed to talk to its peers. This is how mediator works, it works as a communication hub among ...

--- person_table: - &person001 fname: homer lname: simpson role: dad age: 33 - &person002 fname: marge lname: simpson role: mom age: 34 - &person003 fname: pe...

bookmarks, bookmark: create a new bookmark or list existing bookmarks branch: set or show the current branch name branches: list repository named branches config, showconfig, debugconfig: show combined config settings from all hgrc files files: list tracked files help: show help for a given t...

In case of stackable modification, Scala arranges classes and traits in a linear order to determine method call hierarchy, which is known as linearization. The linearization rule is used only for those methods that involve method invocation via super(). Let's consider this by an example: class Shap...

Create a new repository or clone an existing one. Create a new branch called gh-pages without any history $ git checkout --orphan gh-pages # ensure you are in the correct directory then, # remove all files from the old working tree $ git rm -rf Add an index.html file to the root of t...

1. Add a platform target iOS: $ ionic platform add ios Android: $ ionic platform add android Windows: $ ionic platform add windows 2. Build your app iOS: $ ionic build ios Android: $ ionic build android Windows: $ ionic build windows Live Reload App During Development...

Functions which return a character vector Base R has two functions for invoking a system command. Both require an additional parameter to capture the output of the system command. system("top -a -b -n 1", intern = TRUE) system2("top", "-a -b -n 1", stdout = TRUE) ...

var MY_AJAX_ACTION_URL = "path/to/controller.php"; var table = $('#user_list_table').DataTable({ "autoWidth": true, "paging": true, "searching": true, "ordering": true, "language": { ...

Pentaho Data Integration comes in two varieties: Community Edition (CE) - Free version for developers Enterprise Edition (EE) - Paid version for enterprise use Installation steps: You can download Pentaho Data Integration Community Edition from Sourceforge.net. For the Enterprise Editio...

To setup WSO2 ESB do the following : Download WSO2 ESB from http://wso2.com/products/enterprise-service-bus/ and extract the archive Set the JAVA_HOME and PATH environment variables as per your OS Navigate to [ESB_HOME]/bin. If on Windows run wso2server.bat. If on Linux run wso2server.sh. Mo...

On a few occasions, I have had an interesting figure I saved but I lost an access to its data. This example shows a trick how to achieve extract information from a figure. The key functions are findobj and get. findobj returns a handler to an object given attributes or properties of the object, suc...

The advantages of using Session State are 1)Better security 2)Reduced bandwidth The disadvantages of using Session state are 1)More resource consumption of server. 2)Extra code/care if a Web farm is used(we will discuss this shortly) **Session State Modes** ...

The built-in functions GETDATE and GETUTCDATE each return the current date and time without a time zone offset. The return value of both functions is based on the operating system of the computer on which the instance of SQL Server is running. The return value of GETDATE represents the current tim...

Interfaces and implementations (types that implement an interface) are "detached". So it is a rightful question how to check at compile-time if a type implements an interface. One way to ask the compiler to check that the type T implements the interface I is by attempting an assignment us...

First, download a copy of SFML from the official page. Save it anywhere in your computer where it can be easily accessed. Open Codeblocks. Go to Project->Build Options->LinkerSettings tab. Click on the Add button and go to the bin folder of SFML and select all the files present there...

To convert String to and from Data / NSData we need to encode this string with a specific encoding. The most famous one is UTF-8 which is an 8-bit representation of Unicode characters, suitable for transmission or storage by ASCII-based systems. Here is a list of all available String Encodings Stri...

Returns the starting position of the first occurrence of a the specified pattern in the specified expression. Parameters: pattern. A character expression the contains the sequence to be found. Limited to A maximum length of 8000 chars. Wildcards (%, _) can be used in the pattern. If the patter...