Reactive programming

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In data processing, reactive programming is a programming paradigm that is based on data flows. Static or dynamic data flows are easy to express in the assigned programming languages . The underlying execution model automatically propagates changes in the data flows. A good example of a program that works reactively is Excel. If you change a value in a cell, the value in the total cell also changes. The cell whose value was changed triggers an event (a message) which the total cell receives and which then carries out a recalculation.

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