How to convert first letter of the word to UpperCase in JavaScript ?

We can convert the first letter of the word to uppercase by using chatAt and slice methods as follows.

let word = "hello";

console.log(word.charAt(0).toUpperCase() + word.slice(1));

Output: Hello

Here, charAt(0).toUpperCase will convert the first letter of the word to uppercase and word.slice(1) will return the remaining characters of the word except first letter.