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xstream-tuplewise

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An xstream operator that groups consecutive events into N-tuples

github.com/ryota-ka/xstream-tuplewise

ryota-ka/xstream-tuplewise

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# `xstream-tuplewise` ![npm](https://img.shields.io/npm/v/xstream-tuplewise) An xstream operator that groups consecutive events into N-tuples ```typescript function tuplewise<N extends number, T>(n: N): ($: Stream<T>) => Stream<T[] & { length: N }>; ``` ## Installation Note that [`xstream`](https://www.npmjs.com/package/xstream) is a peer dependencies of this library, which need to be installed separately. ### Using [`npm`](https://www.npmjs.com/) ``` $ npm install xstream-tuplewise ``` ### Using [`yarn`](https://yarnpkg.com/) ``` $ yarn add xstream-tuplewise ``` ## Example ### `tuplewise(0)` ``` ---0---1-------2-------3-----------4--------| tuplewise(0) []-[]--[]------[]------[]----------[]-------| ``` ### `tuplewise(1)` ``` ---0---1-------2-------3-----------4--------| tuplewise(1) ---[0]-[1]-----[2]-----[3]---------[4]------| ``` ### `tuplewise(2)` ``` ---0---1-------2-------3-----------4--------| tuplewise(2) -------[0,1]---[1,2]---[2,3]-------[3,4]----| ``` ### `tuplewise(3)` ``` ---0---1-------2-------3-----------4--------| tuplewise(3) ---------------[0,1,2]-[1,2,3]-----[2,3,4]--| ``` ## License MIT