function make a string's first character of all the words to uppercase code example

Example 1: first letter tuUppercase

const string = "tHIS STRING'S CAPITALISATION WILL BE FIXED."
const string = string[0].toUpperCase() + string.slice(1)

Example 2: make first letter uppercase

const publication = "freeCodeCamp";
publication[0].toUpperCase() + publication.substring(1);