function keyedDictionaryFromArray()

in deprecated-react-native-listview/ListViewDataSource.js [416:427]

• 12 lines of code
• 3 McCabe index (conditional complexity)

function keyedDictionaryFromArray(arr) {
  if (isEmpty(arr)) {
    return {};
  }
  const result = {};
  for (let ii = 0; ii < arr.length; ii++) {
    const key = arr[ii];
    warning(!result[key], 'Value appears more than once in array: ' + key);
    result[key] = true;
  }
  return result;
}