symbols.js
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symbols.js
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	const obj = {};

	obj[Symbol.iterator] = 'iter-value';
	obj[Symbol.asyncIterator] = 'async-iter-value';
	obj[Symbol.toStringTag] = 'tag-value';
	obj[Symbol.hasInstance] = 'has-instance-value';
	obj[Symbol.observable] = 'observable-value';
	obj[Symbol.toPrimitive] = 'to-primitive-value';
	obj[Symbol('custom')] = 'custom-value';
	obj[Symbol()] = 'anonymous-value';
	obj.normalKey = 'normal-value';

	console.log('Object with symbol keys:');
	console.log(obj);

	console.log('\nIndividual access:');
	console.log(' [Symbol.iterator]: ' + obj[Symbol.iterator]);
	console.log(' [Symbol.toStringTag]: ' + obj[Symbol.toStringTag]);

	console.log('\nObject.keys:');
	console.log(Object.keys(obj));

	console.log('\nObject.getOwnPropertySymbols:');
	console.log(Object.getOwnPropertySymbols(obj));

	console.log('\nJSON.stringify:');
	console.log(JSON.stringify(obj));