Javascript : Reverse string by word order

Put the words of a phrase in reverse order.

Change "One Two Three" to "Three Two One".

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title>

</head>

<body>
    <main>
        <h1 id="fullname"> Three Two One</h1>

        <script>
            // Reverse string 
            const ele = document.getElementById("fullname");
            const fullname = ele.textContent.trim()

            let reverseContent = '';

            for(let i=0; i < fullname.length; i++){
                    reverseContent += fullname[(fullname.length -1) - i];
            }
            console.log("reverseContent", reverseContent); // we are not spliting by words simply serversed 
            //Using Spread operator        
            const reversedUsingSpreadOperator = [...fullname].reverse().join(''); // This will reverse by character as you do not define split strategy , 
            // it simply spreds all the characters in array resulting individual array element.
            // document.writeln = reversed

            let h4 = document.createElement('h4');
            h4.innerText = reversedUsingSpreadOperator;
            document.body.appendChild(h4)
            console.log(h4.innerHTML)
            // Append it to the DOM (e.g., to the body)

            // Split by words 
            // To reverse string we convert string into array, string dont have reverse function as it is immutable, 
            // converting string into an array provides us array based reverse function. 
            // string has split fucntion , it takes criteria to split string converting into an array, 

            let reveredName = fullname.split(" ").reverse().join(" ") // reverse word order
                ele.textContent += `\u2192    ${reveredName} `;
            //ele.innerText  += `  ${reveredName} `
            console.log(` reversed fullname  ${reveredName} `);
            document.title = reveredName;

             let h2 = document.createElement('h2');
                 h2.innerHTML = `<span style="color:blue"> ${reveredName }</<span>`;
                // document.body.appendChild(h2)
                 console.log(h2.innerHTML)
                  h4.after(h2)

        </script>
        <div> Check console</div>
    </main>
</body>
</html>

save it as .html file and open in browser.