/**
* Universidad de La Laguna
* Escuela Superior de Ingeniería y Tecnología
* Grado en Ingeniería Informática
* Procesadores de Lenguajes
*
* @author Juan Rodríguez Suárez
* @since Mar 04 2024
* @desc Contains some utility functions.
*/
/**
* @brief Returns the string '$' + id
* @param {string} id - The input
* @returns {string} The output
*/
const $ = id => '$' + id;
/**
* @brief Calculates the difference between two sets.
* @param {Set} setA - The first set
* @param {Set} setB - The second set
* @returns {Set} The difference
*/
function difference(setA, setB) {
let difference = new Set(setA);
for (const ELEMENT of setB) {
difference.delete(ELEMENT);
}
return difference;
}
module.exports = {
$,
difference
};