Function propertyAccess

lib/util/property.js:82–101

(properties, start = 0)

 * @returns {string} chain of property accesses
 */
const propertyAccess = (properties, start = 0) => {
	let str = "";
	for (let i = start; i < properties.length; i++) {
		const p = properties[i];
		// Only first chars 0-9, "-", "N", "I" can begin a canonical numeric form
		// (number, NaN, Infinity); skip the Number() round-trip otherwise.
		const c = p.charCodeAt(0);
		if (
			((c >= 48 && c <= 57) || c === 45 || c === 78 || c === 73) &&
			`${Number(p)}` === p
		) {
			str += `[${p}]`;
		} else if (SAFE_IDENTIFIER.test(p) && !RESERVED_IDENTIFIER.has(p)) {
			str += `.${p}`;
		} else {
			str += `[${JSON.stringify(p)}]`;
		}
	}
	return str;
};

module.exports = {
	RESERVED_IDENTIFIER,