javascript get all methods of object

The solution for this is noted below

javascript get all methods of object

Solution

const getMethods = (obj) => {
	let properties = new Set()
	let currentObj = obj

	do {
		Object.getOwnPropertyNames(currentObj).map((item) => properties.add(item))
	} while ((currentObj = Object.getPrototypeOf(currentObj)))

	return [...properties.keys()].filter((item) => typeof obj[item] === 'function')
}

// Example usage
getMethods('')
getMethods(new String('test'))
getMethods({})
getMethods(Date.prototype)

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