Frozen Prop Example

FrozenPropExample.js

'use strict';

const frozen = (() => {
	return {
		get propName () {
			return 123;
		}
	};
})();

console.log(frozen.propName);

try {
	frozen.propName = 321;
	console.log(frozen.propName);
} catch (error) {
	console.error(error.message);
}


const proxyFrozen = (() => {
	const myProp = 123;
	return new Proxy({}, {
		get (target, propName) {
			if (propName === 'propName') {
				return 123;
			}
			return undefined;
		}
	});
})();

console.log(proxyFrozen.propName);

proxyFrozen.propName = 321;
console.log(proxyFrozen.propName);
console.log(proxyFrozen.missingProp);