A Pen by Jeremiah Biard on CodePen.
Jeremiah Biard jeremiahbiard
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| var f = []; | |
| function factorial (n) { | |
| if (n == 0 || n == 1) | |
| return 1; | |
| if (f[n] > 0) | |
| return f[n]; | |
| return f[n] = factorial(n-1) * n; | |
| } |
jeremiahbiard
/ Symmetric Difference Bonfire
Created
June 15, 2015 20:51
Solution to the symmetric difference bonfire. I love functional programming.
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| function complement(A, B) { | |
| return A.filter(function(elem) { return B.indexOf(elem) == -1; }); | |
| } | |
| function unique(arr) { | |
| return arr.filter(function(elem, pos) { | |
| return arr.indexOf(elem) == pos; | |
| }); | |
| } |
jeremiahbiard
/ gist:7d9e64149c87d876d95c
Created
June 11, 2015 03:35
Map/Filter chaining javascript
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| return newReleases.filter(function(movie) { | |
| return (movie.rating === 5.0); | |
| }).map(function(movie) { | |
| return movie.id; | |
| }); |
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