Rational numbers (fractions)
Sometimes you want to handle a ratio as its own entity. Yeah, you could downcast to decimal (though on floating point that's really a crime), or encode it as a string, but neither of those really cuts it.
So why not
npm install ratio?
var ratio =half =half === 05 // truehalf === '1/2' // true=== '1/50'
valueOf()returns numeric form
toString()renders fractional form