In TypeScript, you can convert a string to title case by following these steps:

1. Create a function that accepts a string parameter:

function toTitleCase(input: string): string {
  // logic goes here
  // Convert the input string to lowercase using the toLowerCase() method
  const lowercaseInput = input.toLowerCase();
  // Split the lowercase string into an array of words using the split() method and a space (” “) as the separator
  const words = lowercaseInput.split(" ");
  // Iterate over each word in the array and capitalize the first letter of each word using the charAt() and toUpperCase() methods
  for (let i = 0; i < words.length; i++) {
    words[i] = words[i].charAt(0).toUpperCase() + words[i].slice(1);
  }
  // Join the capitalized words back into a single string using the join() method with a space (” “) as the separator
  const titleCase = words.join(" ");
  return titleCase;
}

. Now, you can use the toTitleCase function to convert a string to title case:

const inputString = "hello world";
const titleCaseString = toTitleCase(inputString);
console.log(titleCaseString); // Output: "Hello World"

This logic converts each word in the string to lowercase and then capitalizes the first letter of each word, resulting in title case format.