JSDoc Function Format
/**
* Calculates and returns the area of a rectangle.
*
* @param {number} width - The width of the rectangle.
* @param {number} length - The length of the rectangle.
* @param {string} unit - The unit of measurement.
* @returns {string} The area of the rectangle and unit of measure.
*/
function getArea(width, length, unit) {
const area = width * length;
return `${area} ${unit}`;
}