My solution in js
const thirdAngle = (angle1, angle2) => (angle1 && angle2 && (angle3 = 180 - (angle1 + angle2)) > 0) ? angle3 : 'Invalid - Sum of all angles of a triangle should be 180 degrees';
What happens if I enter thirdAngle(0,0)?
Good catch. Edited. But the challenge is to deal with positive integers so didn't take 0 into account as it is neither positive nor negative integer.
True enough. But why code purely for specs when coding for the edge and error cases takes just a few more minutes?
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