Convert between degrees and radians in JavaScript
Degrees to radians
JavaScript's Math.PI constant can be used to convert an angle from degrees to radians. The conversion formula is radians = degrees * Math.PI / 180.0.
const degreesToRads = deg => (deg * Math.PI) / 180.0; degreesToRads(90.0); // ~1.5708
Radians to degrees
Conversely, the conversion formula from radians to degrees is degrees = radians * 180.0 / Math.PI.
const radsToDegrees = rad => (rad * 180.0) / Math.PI; radsToDegrees(Math.PI / 2); // 90
