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".');
```