reverseString("hello") should return a string.
testString: 'assert(typeof reverseString("hello") === "string", "reverseString("hello") should return a string.");'
- text: reverseString("hello") should become "olleh".
testString: 'assert(reverseString("hello") === "olleh", "reverseString("hello") should become "olleh".");'
- text: reverseString("Howdy") should become "ydwoH".
testString: 'assert(reverseString("Howdy") === "ydwoH", "reverseString("Howdy") should become "ydwoH".");'
- text: reverseString("Greetings from Earth") should return "htraE morf sgniteerG".
testString: 'assert(reverseString("Greetings from Earth") === "htraE morf sgniteerG", "reverseString("Greetings from Earth") should return "htraE morf sgniteerG".");'
```