prevent navigation module

prevent-navigation.js

const set = new Set()

window.addEventListener("beforeunload", (event) => {
	if (set.size) {
		event.returnValue = "prevent"
	}
})

export const prevent = (key) => {
	set.add(key)
}

export const unprevent = (key) => {
	set.delete(key)
}

export const forceUnpreventAll = () => {
	set.clear()
}

export const getReasons = () => [...set]