Function findMinimum

Returns the 'minimum' point from an array of points, using a comparison function.

Example: Find point closest to a coordinate

const points = [...];
const center = {x: 100, y: 100};

const closestToCenter = findMinimum((a, b) => {
 const aDist = distance(a, center);
 const bDist = distance(b, center);
 if (aDistance < bDistance) return a;
 return b;
}, points);
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