https://docs.vultr.com/javascript/standard-library/Math/asin
In JavaScript, () is a method that returns the arcsine (inverse sine) of a number in radians.
The arcsine (asin) of a number is the angle whose sine is that number.
(x) finds the angle θ such that sin(θ) = x.
The result is given in radians, and it falls within the range -π/2 to π/2 (-1.57 to 1.57 radians).
