NSError is a Cocoa class that encapsulates richer and more extensible error information than is possible using only an error code or error string.

The grid control displays data by means of views. If the grid doesn't represent master-detail relationships, it displays a single View specified by the MainView property. If the main View's data source has child relations or you supply detail data manually, the grid control can display Views representing detail data. Thus, the grid control implements View management mechanisms to arrange them, provide data, specify common appearance, etc.

Scalatra is a tiny Scala web framework, inspired by Sinatra.

`SQL MERGE` statement allows us to insert new rows into table and update existing rows depending on given condition. Use this tag in addition to [tag:sql] to make question better categorized.

Joomla! is a free and open-source web content management system written in PHP. It is released under the GNU General Public License. This tag is for programming-specific questions referring to version 1.7.

A screen recording is a recording of computer screen output, also known as a video screen capture. All activity perform on screen, during the recording time, will be output either as screenshots (images) or video file.

ROOT is an object-oriented framework developed by CERN written in C++. It is especially designed to efficiently handle large amounts of data.

HDMI is a compact audio/video interface for transmitting uncompressed digital data.

The Nest API allows real time observation and control of Nest devices in the home.

Webix is a JavaScript UI Library with lightweight ready-made widgets and controls based on HTML5 and CSS techniques for enterprise JavaScript UI web apps development (dashboards 📊, reports 📈, etc.). Webix works with any server-side platforms (.NET, Java, PHP, etc.) and can be integrated with jQuery, Vue.js, AngularJS, Backbone.js. Starting from version 4.0 UI library is compatible with Angular 2.

Modular arithmetic is quite a useful tool in number theory. In particular, it can be used to obtain information about the solutions (or lack thereof) of a specific equation.