parwatcodes · April 16, 2019 15:57
diff --git a/js_tricks.js b/js_tricks.js
 console.log([false, null, 2, 0, undefined].filter(Boolean));

 const isRequired = () => { throw new Error('param is required'); };
 const hello = (name = isRequired()) => { console.log(`hello ${name}`) };
	console.log([false, null, 2, 0, undefined].filter(Boolean));

	const isRequired = () => { throw new Error('param is required'); };
	const hello = (name = isRequired()) => { console.log(`hello ${name}`) };