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add javascript example of powerset in one line (#381) #415

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add javascript example of powerset in one line (#381) #415

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add javascript example of powerset in one line
DiscoTiger Oct 24, 2019
5507d93
Merge branch 'master' into jspowerset
wzhouwzhou Oct 3, 2021
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5 changes: 5 additions & 0 deletions CONTRIBUTORS.md
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Expand Up @@ -439,3 +439,8 @@ Name: [Antonio](https://github.com/toluwalope19) </br>
Place: Nigeria </br>
Coding Experience: Python and javaScript. </br>
Email: [email protected] </br>

Name:[Caden Mccauley](https://github.com/DiscoTiger) </br>
Place: United States </br>
Coding Experience: CS Student primarily focusing on Javascript and C++
Email: [email protected] </br>
3 changes: 3 additions & 0 deletions javascript/discotiger_powerset.js
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@@ -0,0 +1,3 @@
// generate the powerset (set of all subsets) of an arrays elements
// given [a,b] return [[],[a],[b],[a,b]]
const powerset = (input) => input.reduce((acc, cur) => acc.concat(acc.map(x => [...x,cur])),[[]]);