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 # S.js
 
+[![npm Package Version](https://img.shields.io/npm/v/s-js?maxAge=3600)](https://www.npmjs.com/package/s-js)
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 S.js is a small reactive programming library.  It combines an automatic dependency graph with a synchronous execution engine.  The goal is to make reactive programming simple, clean, and fast.  
 
 An S app consists of *data signals* and *computations*: