Tutorial by Topics: cols

Protocols are a way of specifying how to use an object. They describe a set of properties and methods which a class, structure, or enum should provide, although protocols pose no restrictions on the implementation. A Swift protocol is a collection of requirements that conforming types must imp...

A note on structs Instead of sharing protocol implementation with maps, structs require their own protocol implementation.

The special symbol .SD is available in j of DT[i,j,by], capturing the Subset of Data for each by group surviving the filter, i. .SDcols is a helper. Type ?`special-symbols` for the official docs. A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. T...

When creating advanced layouts, there may be scenarios when you'll need to use more than 12 column units in a single .row element. The concept of column wrapping and responsive resets (A.K.A. clearfixes) are essential to understanding responsive design with Bootstrap. Basics of the Bootstrap Grid ...

Protocols and Delegates are two related but different concept: A Protocol is a interface a class can conforms to, meaning that class implements the listed methods. A Delegate is typically an anonymous object that conforms to a protocol. The application of Delegate called Delegation is a design ...

Protocols which can be used in the IoT projects which would help to communicate between the IoT devices/IoT Clients.