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import {path} from './path'
function indexByPath(pathInput, list) {  const toReturn = {}  for (let i = 0; i < list.length; i++) {    const item = list[i]    toReturn[path(pathInput, item)] = item  }
  return toReturn}
export function indexBy(condition, list) {  if (arguments.length === 1) {    return _list => indexBy(condition, _list)  }
  if (typeof condition === 'string') {    return indexByPath(condition, list)  }
  const toReturn = {}  for (let i = 0; i < list.length; i++) {    const item = list[i]    toReturn[condition(item)] = item  }
  return toReturn}