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July 17, 2020 03:04
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| # Below are some examples of what I love about Ruby | |
| # Code that reads like English | |
| 10.times { print 'Hello' } | |
| this_variable_is_true = true | |
| print 'Something' if this_variable_is_true | |
| # Metaprogramming | |
| class Integer | |
| def hundred | |
| self * 100 | |
| end | |
| def thousand | |
| self * 1000 | |
| end | |
| end | |
| class Enumerator | |
| def print(string) | |
| loop do | |
| puts string | |
| self.next | |
| end | |
| end | |
| end | |
| puts 10.thousand # prints 10000 | |
| 1.hundred.times.print 'Wow!' # prints 'Wow!' one hundred times | |
| # Powerful standard library | |
| puts [*(0..9)].permutation(3).to_a.length # prints the number of permutations of length 3 for 0-9 |
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