Method optionalChaining

lib/RuntimeTemplate.js:386–392

* Guards an access/call on `object` with optional chaining when supported, * otherwise an equivalent `&&` short-circuit. `object` is evaluated twice in * the fallback, so it must be side-effect free. * @param {string} object base expression (side-effect free) * @param {string} access continu

(object, access)

	 * @returns {string} guarded access expression
	 */
	optionalChaining(object, access) {
		if (this.supportsOptionalChaining()) {
			return `${object}?.${access}`;
		}
		const sep = access[0] === "(" || access[0] === "[" ? "" : ".";
		return `${object} && ${object}${sep}${access}`;
	}

	/**
	 * Reads a node builtin via `process.getBuiltinModule()`, guarded to stay falsy off node so universal `["node", "web"]` bundles don't crash (also falsy on node <22.3).