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For more information about errors, see The Swift Programming Language.

A Hash is a dictionary-like collection of unique keys and their values. Also called associative arrays, they are similar to Arrays, but where an Array uses integers as its index, a Hash allows you to use any object type. You retrieve or create a new entry in a Hash by referring to its key. ...

Styles can be authored in several ways, allowing for varying degrees of reuse and scope when they are specified in a source HTML document. External stylesheets can be reused across HTML documents. Embedded stylesheets apply to the entire document in which they are specified. Inline styles apply on...

Xcode is an integrated development environment for macOS which supports the development of native apps for macOS, iOS, watchOS, and tvOS. Xcode is the successor to NeXT's Project Builder and PBX. (In fact, Xcode's project manifest files are still named with the .pbxproj extension.) Xcode releas...

AngularJS is a web application framework designed to simplify rich client-side application development. This documentation is for Angular 1.x, the predecessor of the more modern Angular 2 or see the Stack Overflow documentation for Angular 2. VersionRelease Date1.6.52017-07-031.6.42017-03-311....

Jsoup is a HTML parsing and data extraction library for Java, focused on flexibility and ease of use. It can be used to extract sepecific data from HTML pages, which is commonly known as "web scraping", as well as modify the content of HTML pages, and "clean" untrusted HTML wit...

Python does common mathematical operators on its own, including integer and float division, multiplication, exponentiation, addition, and subtraction. The math module (included in all standard Python versions) offers expanded functionality like trigonometric functions, root operations, logarithms, a...

VersionRelease Date0.991989-06-081.011989-06-232.01996-12-312.021998-04-202.031999-02-192.042001-03-212.05b2002-07-173.02004-08-033.12005-12-083.22006-10-114.02009-02-204.12009-12-314.22011-02-134.32014-02-264.42016-09-15

MySQL is an open-source Relational Database Management System (RDBMS) that is developed and supported by Oracle Corporation. MySQL is supported on a large number of platforms, including Linux variants, OS X, and Windows. It also has APIs for a large number of languages, including C, C++, Java, ...

WordPress is an open source Content Management System (CMS) which is used to build and manage websites. WordPress is the most popular CMS on the internet by a country mile, powering about half of all CMS websites at time of writing and about a quarter of all websites on the internet. WordPress ...

window.history.pushState(domain, title, path); window.history.replaceState(domain, title, path); ParameterDetailsdomainThe domain you want to update totitleThe title to update topathThe path to update to The HTML5 History API is not implemented by all browsers and implementations tend to ...

String.characters // Returns an Array of the characters in the String String.characters.count // Returns the number of characters String.utf8 // A String.UTF8View, returns the UTF-8 character points in the String String.utf16 // A String.UTF16View, returns the UTF-16 character points in the St...

This is an simple, yet thorough, example of initializing PubNub, subscribing to a channel and publishing to that channel. Once you init PUBNUB, you can subscribe to a channel. The connect callback indicates that subscription to the channel was successful, so we call our pub function which perf...

<init> (i.e. require ("pubnub")) Initialize an instance of PubNub to invoke operations. ParameterDetailspublish_keyString - your publish key from your PubNub Admin Dashboard accountsubscribe_keyString - your publish key from your PubNub Admin Dashboard account subscribe Subscri...

Node.js is an event-based, non-blocking, asynchronous I/O framework that uses Google's V8 JavaScript engine. It is used for developing applications that make heavy use of the ability to run JavaScript both on the client, as well as on server side and therefore benefit from the re-usability of code...

Perl is the camel of languages: useful, but not always beautiful. It has rather good documentation of its own which can be accessed using the perldoc command from your shell/command prompt. It's also available online at perldoc.perl.org. VersionRelease NotesRelease Date1.0001987-12-182.0001988...

All searching algorithms on iterables containing n elements have O(n) complexity. Only specialized algorithms like bisect.bisect_left() can be faster with O(log(n)) complexity.