
Convert To Title Case

Your function should take a string as an input and convert all the first letters of the words in the string to uppercase, making the string a title case (other letters must be in lowercase).
Input: Original string (str).
Output: Converted string (str).
Examples:
assert to_title_case("hello world") == "Hello World" assert to_title_case("openai gpt-4") == "Openai Gpt-4" assert to_title_case("this is a title") == "This Is A Title" assert to_title_case("THE QUICK BROWN FOX") == "The Quick Brown Fox"
How it’s used:
- for text processing and data normalization tasks;
- for rendering text in UI in a standard title case format.
Preconditions:
- sentence ∈ string;
- length(sentence) >= 0.