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Application programming interface

Application programming interface
In computer programming, an application programming interface (API) specifies how some software components should interact with each other. Detailed explanation[edit] API in procedural languages[edit] In most procedural languages, an API specifies a set of functions or routines that accomplish a specific task or are allowed to interact with a specific software component. This specification is presented in a human readable format in paper books, or in electronic formats like ebooks or as man pages. For example, the math API on Unix systems is a specification on how to use the mathematical functions included in the math library. The Unix command man 3 sqrt presents the signature of the function sqrt in the form: SYNOPSIS #include <math.h> double sqrt(double X); float sqrtf(float X); DESCRIPTION sqrt computes the positive square root of the argument. ... $ perldoc -f sqrt sqrt EXPR sqrt #Return the square root of EXPR. API in object-oriented languages[edit] API libraries and frameworks[edit]

http://en.wikipedia.org/wiki/Application_programming_interface

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Free Your Data and the Apps Will Follow? This guest post comes from Mark O’Neill, CTO of Vordel, which sells products to manage cloud computing, including a cloud service broker. APIs represent such an important technology trend, that new business models can develop on top of them, sometimes called “The API economy”. The API economy encompasses API developers, the businesses providing the APIs, the businesses hosting APIs, and app developers. This growing API economy has resulted in a philosophical switch in the mindset of many organizations that are now making access to internal data available, enabling partners and customers to develop value-added applications on top of this data.

Anonymous function Anonymous functions originate in the work of Alonzo Church in his invention of the lambda calculus in 1936 (prior to electronic computers), in which all functions are anonymous. In several programming languages, anonymous functions are introduced using the keyword lambda, and anonymous functions are often referred to as lambda functions. Uses[edit] Sorting[edit] When attempting to sort in a non-standard way it may be easier to contain the comparison logic as an anonymous function instead of creating a named function.

Object-oriented programming Overview[edit] Rather than structure programs as code and data, an object-oriented system integrates the two using the concept of an "object". An object has state (data) and behavior (code). Objects correspond to things found in the real world. Health Care Health care (or healthcare) is the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in humans. Health care is delivered by practitioners in allied health, dentistry, midwifery-obstetrics , medicine, nursing, optometry, pharmacy and other care providers. It refers to the work done in providing primary care, secondary care, and tertiary care, as well as in public health. Access to health care varies across countries, groups, and individuals, largely influenced by social and economic conditions as well as the health policies in place. Countries and jurisdictions have different policies and plans in relation to the personal and population-based health care goals within their societies.

List of Java APIs Official APIs[edit] Java Platform, Standard Edition (Java SE)[edit] Java Platform, Enterprise Edition (Java EE)[edit] The API is Dead! Long Live the API! A funny thing happened as I was noodling on this ZapFlash. I was all set to put the nail in the Application Programming Interface (API) coffin, continuing the discussion of just how awful Remote Procedure Call (RPC) interfaces are, and how we should avoid them at all costs. But then I ran across the “explosion of APIs” meme at ProgrammableWeb and elsewhere. After all, your head must be planted deeply in the sand not to notice the plethora of APIs at all our favorite Social Web sites like Twitter, Facebook, and hundreds of others.

JavaScript Garden Although JavaScript deals fine with the syntax of two matching curly braces for blocks, it does not support block scope; hence, all that is left in the language is function scope. function test() { // a scope for(var i = 0; i < 10; i++) { // not a scope // count } console.log(i); // 10} There are also no distinct namespaces in JavaScript, which means that everything gets defined in one globally shared namespace. Each time a variable is referenced, JavaScript will traverse upwards through all the scopes until it finds it. Programming language The earliest programming languages preceded the invention of the digital computer and were used to direct the behavior of machines such as Jacquard looms and player pianos.[1] Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. Many programming languages require computation to be specified in an imperative form (i.e., as a sequence of operations to perform), while other languages utilize other forms of program specification such as the declarative form (i.e. the desired result is specified, not how to achieve it). Definitions[edit] A programming language is a notation for writing programs, which are specifications of a computation or algorithm.[2] Some, but not all, authors restrict the term "programming language" to those languages that can express all possible algorithms.[2][3] Traits often considered important for what constitutes a programming language include:

Law "Legal concept" redirects here. Lady Justice, a symbol of justice. She is depicted as a goddess equipped with three items: a sword, symbolising the coercive power of a court; scales, representing an objective standard by which competing claims are weighed; and a blindfold indicating that justice should be impartial and meted out objectively, without fear or favor and regardless of money, wealth, power or identity.[1] Law is a term which does not have a universally accepted definition,[2] but one definition is that law is a system of rules and guidelines which are enforced through social institutions to govern behaviour.[3] Laws can be made by legislatures through legislation (resulting in statutes), the executive through decrees and regulations, or judges through binding precedents (normally in common law jurisdictions).

Collaborative Methods: Share API Java Library I hope you guys are having fun playing with our APIs. To make things a bit easier, here is a Java library that you can use that takes care of all the nasty authentication and XML formatting bits. It could also be of use as reference for those of you developing libraries in other languages. Consider it alpha code, and feel free to fix any errors you might come across. The Internet of Things Will Generate Terabytes of Data The Internet of Things Will Generate Terabytes of Data. What Will We Do with All of It? By Elle Wood In less than 5 years, "the Internet of Things will transform the data center," says Gartner. This transformation is predicted to trickle across industries and affect business models, how we market products and even inspire new technology developments.

filter.js – Client side search filtering using JSON and jQuery Speed for search result filtering is critical. Its fine for site users to wait for some time (maybe a few seconds) to load the search results but after that filtering better be fast otherwise people lose interest. To give a simple example of how things are not user friendly is if you go to ebay.com or ebay.in. JavaScript JavaScript is classified as a prototype-based scripting language with dynamic typing and first-class functions. This mix of features makes it a multi-paradigm language, supporting object-oriented,[6] imperative, and functional[1][7] programming styles. JavaScript has been standardized in the ECMAScript language specification. History[edit] Beginnings at Netscape[edit] JavaScript was originally developed by Brendan Eich, while working for Netscape Communications Corporation.

Information retrieval Information retrieval is the activity of obtaining information resources relevant to an information need from a collection of information resources. Searches can be based on metadata or on full-text (or other content-based) indexing. Automated information retrieval systems are used to reduce what has been called "information overload".

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