Convert first letter of each word in a string to Uppercase in JavaScript

Question

I can write this code in a simpler way but I want to write it as a function based code. I am looking to change the starting letter of each word in a string to uppercase.Please help!!

 function convertuc(str) {
 let arr = str.toLowerCase().split(" ");
 for (let s of arr){
 let arr2 = arr.map(s.charAt(0).toUpperCase() + s.substring(1)).join(" ");
 }
 return arr2
 };
 console.log(convertuc("convert the first letter to upper case")); // Test//

• Tim Biegeleisen: Possible duplicate of How do I make the first letter of a string uppercase in JavaScript?

Answer 1

You're almost there. You don't need a for loop since you're already using map (which does the iteration for you and builds a new array by transforming each string in arr to a new one based on the function provided).

function convertuc(str) {
 let arr = str.toLowerCase().split(" ");
 let arr2 = arr.map(s => s.charAt(0).toUpperCase() + s.substring(1)).join(" ");
 return arr2; // note that arr2 is a string now because of .join(" ")
};
console.log(convertuc("convert the first letter to upper case"));

• shine12: ok, thank, all I need was to get rid of the second function and define s as (s=>).

Answer 2

What about to use pure CSS?

p {
 text-transform: capitalize;
}

<p>this is a simple sentence.</p>