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Finding closest number in sequence to given number
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| val entryPoint = 0 | |
| val points = List(-2, -1, 0, 1, 2, 3, 4) | |
| val closest = points | |
| .reduceLeftOption { | |
| (point1, point2) => | |
| val distance1 = Math.sqrt(Math.pow(entryPoint - point1, 2)) | |
| val distance2 = Math.sqrt(Math.pow(entryPoint - point2, 2)) | |
| if (distance1 < distance2) { | |
| point1 | |
| } else { | |
| point2 | |
| } | |
| } | |
| println(closest) |
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