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CheezItMan
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Apr 2, 2020
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Good work, you hit most of all the learning goals here. Well done.
Take a look at my comments and let me know if you have any questions.
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| intersection_array = list2.map do |num| | ||
| num if lookup_hash[num] | ||
| end | ||
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| return intersection_array.compact |
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Use map if you want to do an operation on each element in the array. In this case you want to get only some of the elements of the array.
Suggested change
| intersection_array = list2.map do |num| | |
| num if lookup_hash[num] | |
| end | |
| return intersection_array.compact | |
| intersection_array = list2.select do |num| | |
| lookup_hash[num] | |
| end | |
| return intersection_array |
| @@ -1,3 +1,25 @@ | |||
| def intersection(list1, list2) | |||
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| if number_of_odd > 1 | ||
| return false | ||
| else | ||
| return true | ||
| end |
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Suggested change
| if number_of_odd > 1 | |
| return false | |
| else | |
| return true | |
| end | |
| return number_of_odd > 1 |
| @@ -1,4 +1,21 @@ | |||
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| def permutations?(string1, string2) | |||
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This would fail for something like heelo and hello. Instead of making lookup_hash[letter] = true instead count the number of times each letter appears.
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