export function stepIndexAndWrap()

in src/components/base/filtered_search/filtered_search_utils.js [73:91]

• 13 lines of code
• 5 McCabe index (conditional complexity)

export function stepIndexAndWrap(index, step, length) {
  if (step === 0) return index;

  let start;
  const indexInRange = index >= 0 && index < length;

  if (indexInRange) {
    // Step from the valid index.
    start = index;
  } else if (step > 0) {
    // Step forwards from the beginning of the array.
    start = -1;
  } else {
    // Step backwards from the end of the array.
    start = length;
  }

  return modulo(start + step, length);
}