Yoav Rubin yoavrubin
yoavrubin
/ factorial.js
Created
December 12, 2013 20:56
A trip down factorial lane - see what Javascript functions and some functional programming goodies can do
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| // the most basic factorial | |
| function fact1(n){ | |
| if(n < 2) return 1; | |
| return n*fact1(n-1); | |
| } | |
| // let's add some precondition verifications | |
| function fact2(n){ | |
| if(typeof n !== 'number' || isNaN(n) || n < 0) |