text: import ascending from "./ascending.js";
  import maxIndex from "./maxIndex.js";
  
  export default function greatestIndex(values, compare = ascending) {
    if (compare.length === 1) return maxIndex(values, compare);
    let maxValue;
    let max = -1;
    let index = -1;
    for (const value of values) {
      ++index;
      if (max < 0
          ? compare(value, value) === 0
          : compare(value, maxValue) > 0) {
        maxValue = value;
        max = index;
      }
    }
    return max;
  }
  