Use this tag for questions specific to features in Webpack 4. When using this tag, also include the more generic [webpack] tag where possible.

BlackBerry 10 is a QNX-based mobile platform developed by BlackBerry (formerly Research in Motion). It is the successor to the BlackBerry Java platform and was launched to consumers on January 30th 2013. Be sure to read the tag wiki (click on learn more) before selecting question tags.

The Q.js JavaScript promise library. Q catches errors and uses a `then` technique to handle JavaScript callbacks and exceptions. Do *not* use for Angular's $q, use [angular-promise] instead! Also do *not* use for kx System's kdb+/q, use [kdb] or [q-lang] instead! Lastly, this tag should not be used for questions regarding Android 10 - use the [android-10.0] tag instead!

This tag refers to a situation in which you are refused access to a particular system, file, database, etc. that is protected. The most common cause of this is improper credentials (i.e. usernames, passwords, etc.)

Fluid is a an XML-based templating system for TYPO3. With Fluid, all the code for the view logic moves to the template - e.g. loops, if/else switches and similar.

Converting existing code or executables to another programming language, environment, or architecture.

A deep copy of an object is a separate, fully independent duplicate of that object, such that any references / pointers it holds to other objects refer to deep copies of those to which the original's refer. Use this tag for questions regarding implementing or using deep copying methods.

Gradle is a project build automation tool. A Gradle plugin packages up reusable pieces of build logic, which can be used across many different projects and builds. Gradle allows you to implement your own custom plugins, so you can reuse your build logic, and share it with others.

The UIStackView class provides a streamlined interface for laying out a collection of views in either a column or a row. Stack views let you leverage the power of Auto Layout, creating user interfaces that can dynamically adapt to the device’s orientation, screen size, and any changes in the available space.

OptaPlanner is a lightweight, embeddable planning engine written in Java. It helps normal Java programmers solve constraint satisfaction problems efficiently. Under the hood, it combines optimization heuristics and metaheuristics with very efficient score calculation.

Flex 4.5 is an iteration of the ActionScript and MXML based RIA SDK focused on expanding support for mobile / tablet platforms.