How to find the median among three given numbers in TypeScript

1 Answer

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/**
 * Computes the median of three numbers.
 * The median is the value that is neither the minimum nor the maximum.
 *
 * Formula:
 *   median = a + b + c - min(a, b, c) - max(a, b, c)
 */
function medianOfThreeNumbers(a: number, b: number, c: number): number {
  // Determine the minimum of the three numbers
  let min: number = a;
  if (b < min) min = b;
  if (c < min) min = c;

  // Determine the maximum of the three numbers
  let max: number = a;
  if (b > max) max = b;
  if (c > max) max = c;

  // The median is the remaining value
  return a + b + c - min - max;
}

// Test cases
console.log("The median of [1, 1, 1] is", medianOfThreeNumbers(1, 1, 1));
console.log("The median of [10, 3, 7] is", medianOfThreeNumbers(10, 3, 7));
console.log("The median of [10, -10, -10] is", medianOfThreeNumbers(10, -10, -10));
console.log("The median of [3, 3, 5] is", medianOfThreeNumbers(3, 3, 5));



/*
run:

The median of [1, 1, 1] is 1
The median of [10, 3, 7] is 7
The median of [10, -10, -10] is -10
The median of [3, 3, 5] is 3

*/

 



answered Mar 26 by avibootz
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