Layouts in Flutter - Google’s UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase, refer to the classes called widgets used to build UIs, both for layout and UI elements. Layouts may be in the form of single-child or multi-child layout widgets. Use this tag for all types of layout widgets used in Flutter.

A number is a mathematical object used to count, measure and label. Questions about using numbers in variables processing, numbers processing, conversion, display, logical numerical changes, data type existence, etc. For questions regarding phone numbers, please use tag [phone-number].

The Doctrine Project is a collection of open source libraries and tools for dealing with database abstraction and Object-Relational Mapping written in PHP.

This tag is used for questions related to the ARM (Advanced RISC Machine) family of computers; that is machines or electronics running on ARM processor cores or systems using an ARM core. For Azure-related questions, use [azure-resource-manager].

A set is a collection in which no element is repeated, which may be able to enumerate its elements according to an ordering criterion (an "ordered set") or retain no order (an "unordered set").

Refers to a graphical dialog used to display important information to the user. These dialogs appear above all other content, blocking application flow until user input is received.

Eclipse is an OSGi extensible platform for tool integration. The extensions to Eclipse are Java plug-ins. Use this tag to ask about developing Eclipse plug-ins. Note that asking for plug-in recommendations is off-topic.

Questions about the Jenkins “Pipeline” plugin suite (formerly “Workflow”). Not about pipelines in Jenkins in general (e.g. using downstream jobs).

Plotly.js is an open source, high-level, declarative charting library, built on top of d3.js and stack.gl. It ships with over 40 chart types, including 3D charts, statistical graphs, and SVG maps. Use [r-plotly] for the R package and [plotly-python] for the Python package.

A framework is an existing library or set of libraries that provides overarching application structure so that the developer can focus primarily on their application's implementation details instead. In most cases the tag for a specific framework should be used instead of this tag.

Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks.