Created
February 24, 2020 23:12
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| function doubleSay (str) { | |
| return str + ", " + str; | |
| } | |
| function capitalize (str) { | |
| return str[0].toUpperCase() + str.substring(1); | |
| } | |
| function exclaim (str) { | |
| return str + '!'; | |
| } |
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