Created
October 20, 2016 02:40
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| // first // | |
| _.first = function(array) { | |
| return array[0]; | |
| } | |
| // first with [i] // | |
| _.first = function(array, [i]) { | |
| return array[i]; | |
| } |
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how about if the array is length 0? or i is undefined?