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For full documentation including version-specific functionality, please check the official documentation. Types Defaults the json module will handle encoding and decoding of the below types by default: De-serialisation types: JSONPythonobjectdictarrayliststringstrnumber (int)intnumber (...

A key component of interactive web systems, input tags are HTML elements designed to take a specific form of input from users. Different types of input elements can regulate the data entered to fit a specified format and provide security to password entry. <input type="" name=&quo...

str.capitalize() -> str str.casefold() -> str [only for Python > 3.3] str.center(width[, fillchar]) -> str str.count(sub[, start[, end]]) -> int str.decode(encoding="utf-8"[, errors]) -> unicode [only in Python 2.x] str.encode(encoding="utf-8"...

timeoutID = setTimeout(function() {}, milliseconds) intervalID = setInterval(function() {}, milliseconds) timeoutID = setTimeout(function() {}, milliseconds, parameter, parameter, ...) intervalID = setInterval(function() {}, milliseconds, parameter, parameter, ...) clearTimeout(timeoutID) cle...

Generator functions (defined by the function* keyword) run as coroutines, generating a series of values as they're requested through an iterator. function* name(parameters) { yield value; return value } generator = name(arguments) { value, done } = generator.next(value) { value, done } = ge...

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

Generators are lazy iterators created by generator functions (using yield) or generator expressions (using (an_expression for x in an_iterator)). yield <expr> yield from <expr> <var> = yield <expr> next(<iter>)

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...

With CSS you can set colors, gradients, and images as the background of an element. It is possible to specify various combinations of images, colors, and gradients, and adjust the size, positioning, and repetition (among others) of these. background-color: color | transparent | initial | inhe...

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...

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 ...

The Rails router recognizes URLs and dispatches them to a controller's action. It can also generate paths and URLs, avoiding the need to hardcode strings in your views. "Routing" in general is how URL's are "handled" by your app. In Rails case it's typically which control...

Some examples in this topic might have a different order when used because dictionary order is not guaranteed.

The HTML5 standards does not list the main element as a sectioning element.

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 ...