Easy - 01 - First Reverse.js

// Step By Step
function FirstReverse(str) {
    
    // First, we need to use .split to change the string into an array so it can be further manipulated.
    // Passing "" (an empty string) into the method splits the string at every character.
    str = str.split("");

    // Next, we use the reverse method to reverse the order of the elements in our newly formed array.
    // Note that only arrays have the .reverse method, which is why we had to use .split.
    str = str.reverse();

    // After that, we use the .join method to reassemble our array back into a string. 
    // Passing an empty string here means that nothing gets inserted between each array element.
    str = str.join("");

    // Finally, we return the modified string
    return str;
}

// Using chaining
function FirstReverse(str) {
    return str.split("").reverse().join("");
}