dutchcelt

/**
 * Converts a step value to a corresponding T-shirt size.
 * The default value '0' is equal to 'm'.
 * @param {number} step - The step value to convert into a T-shirt size.
 * @returns {string} The T-shirt size corresponding to the given step value.
 */
const convertToTShirtSize = (step = 0) => {
	const times = Math.max(0, Math.abs(step) - 1);
	const index = Math.sign(step) + 1;
	return 'x'.repeat(times) + ['s','m','l'][index];

paulirish

/* bling.js */
window.$ = document.querySelector.bind(document);
window.$$ = document.querySelectorAll.bind(document);
Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); };
NodeList.prototype.__proto__ = Array.prototype;
NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); };