function formatData(dataset, props, expectedKeys) {
  const isArrayOrIterable = Array.isArray(dataset) || Immutable.isIterable(dataset);
  if (!isArrayOrIterable || getLength(dataset) < 1) {
    return [];
  }

  const defaultKeys = ["x", "y", "y0"];
  expectedKeys = Array.isArray(expectedKeys) ? expectedKeys : defaultKeys;

  const stringMap = {
    x: expectedKeys.indexOf("x") !== -1 ? createStringMap(props, "x") : undefined,
    y: expectedKeys.indexOf("y") !== -1 ? createStringMap(props, "y") : undefined,
    y0: expectedKeys.indexOf("y0") !== -1 ? createStringMap(props, "y") : undefined
  };

  const createAccessor = (name) => {
    return Helpers.createAccessor(props[name] !== undefined ? props[name] : name);
  };

  const accessor = expectedKeys.reduce((memo, type) => {
    memo[type] = createAccessor(type);
    return memo;
  }, {});

  const preformattedData =
    isEqual(expectedKeys, defaultKeys) &&
    props.x === "_x" &&
    props.y === "_y" &&
    props.y0 === "_y0";

  const data = preformattedData
    ? dataset
    : dataset.reduce((dataArr, datum, index) => {
        // eslint-disable-line complexity
        datum = parseDatum(datum);
        const fallbackValues = { x: index, y: datum };
        const processedValues = expectedKeys.reduce((memo, type) => {
          const processedValue = accessor[type](datum);
          const value = processedValue !== undefined ? processedValue : fallbackValues[type];
          if (value !== undefined) {
            if (typeof value === "string" && stringMap[type]) {
              memo[`${type}Name`] = value;
              memo[`_${type}`] = stringMap[type][value];
            } else {
              memo[`_${type}`] = value;
            }
          }
          return memo;
        }, {});

        const formattedDatum = assign({}, processedValues, datum);
        if (!isEmpty(formattedDatum)) {
          dataArr.push(formattedDatum);
        }

        return dataArr;
      }, []);

  const sortedData = sortData(data, props.sortKey, props.sortOrder);
  const cleanedData = cleanData(sortedData, props);
  return addEventKeys(props, cleanedData);
}
function formatData(dataset, props, expectedKeys) {
  const isArrayOrIterable = Array.isArray(dataset) || Immutable.isIterable(dataset);
  if (!isArrayOrIterable || getLength(dataset) < 1) {
    return [];
  }

  const defaultKeys = ["x", "y", "y0"];
  expectedKeys = Array.isArray(expectedKeys) ? expectedKeys : defaultKeys;

  const stringMap = {
    x: expectedKeys.indexOf("x") !== -1 ? createStringMap(props, "x") : undefined,
    y: expectedKeys.indexOf("y") !== -1 ? createStringMap(props, "y") : undefined,
    y0: expectedKeys.indexOf("y0") !== -1 ? createStringMap(props, "y") : undefined
  };

  const createAccessor = (name) => {
    return Helpers.createAccessor(props[name] !== undefined ? props[name] : name);
  };

  const accessor = expectedKeys.reduce((memo, type) => {
    memo[type] = createAccessor(type);
    return memo;
  }, {});

  const preformattedData =
    isEqual(expectedKeys, defaultKeys) &&
    props.x === "_x" &&
    props.y === "_y" &&
    props.y0 === "_y0";

  const data = preformattedData
    ? dataset
    : dataset.reduce((dataArr, datum, index) => {
        
        datum = parseDatum(datum);
        const fallbackValues = { x: index, y: datum };
        const processedValues = expectedKeys.reduce((memo, type) => {
          const processedValue = accessor[type](datum);
          const value = processedValue !== undefined ? processedValue : fallbackValues[type];
          if (value !== undefined) {
            if (typeof value === "string" && stringMap[type]) {
              memo[`${type}Name`] = value;
              memo[`_${type}`] = stringMap[type][value];
            } else {
              memo[`_${type}`] = value;
            }
          }
          return memo;
        }, {});

        const formattedDatum = assign({}, processedValues, datum);
        if (!isEmpty(formattedDatum)) {
          dataArr.push(formattedDatum);
        }

        return dataArr;
      }, []);

  const sortedData = sortData(data, props.sortKey, props.sortOrder);
  const cleanedData = cleanData(sortedData, props);
  return addEventKeys(props, cleanedData);
}
function formatData ( dataset , props , expectedKeys ) { const isArrayOrIterable = Array . isArray ( dataset ) || Immutable . isIterable ( dataset ) ; if ( ! isArrayOrIterable || getLength ( dataset ) < 1 ) { return [ ] ; } const defaultKeys = [ "x" , "y" , "y0" ] ; expectedKeys = Array . isArray ( expectedKeys ) ? expectedKeys : defaultKeys ; const stringMap = { x : expectedKeys . indexOf ( "x" ) !== - 1 ? createStringMap ( props , "x" ) : undefined , y : expectedKeys . indexOf ( "y" ) !== - 1 ? createStringMap ( props , "y" ) : undefined , y0 : expectedKeys . indexOf ( "y0" ) !== - 1 ? createStringMap ( props , "y" ) : undefined } ; const createAccessor = ( name ) => { return Helpers . createAccessor ( props [ name ] !== undefined ? props [ name ] : name ) ; } ; const accessor = expectedKeys . reduce ( ( memo , type ) => { memo [ type ] = createAccessor ( type ) ; return memo ; } , { } ) ; const preformattedData = isEqual ( expectedKeys , defaultKeys ) && props . x === "_x" && props . y === "_y" && props . y0 === "_y0" ; const data = preformattedData ? dataset : dataset . reduce ( ( dataArr , datum , index ) => { // eslint-disable-line complexity datum = parseDatum ( datum ) ; const fallbackValues = { x : index , y : datum } ; const processedValues = expectedKeys . reduce ( ( memo , type ) => { const processedValue = accessor [ type ] ( datum ) ; const value = processedValue !== undefined ? processedValue : fallbackValues [ type ] ; if ( value !== undefined ) { if ( typeof value === "string" && stringMap [ type ] ) { memo [ ` ${ type } ` ] = value ; memo [ ` ${ type } ` ] = stringMap [ type ] [ value ] ; } else { memo [ ` ${ type } ` ] = value ; } } return memo ; } , { } ) ; const formattedDatum = assign ( { } , processedValues , datum ) ; if ( ! isEmpty ( formattedDatum ) ) { dataArr . push ( formattedDatum ) ; } return dataArr ; } , [ ] ) ; const sortedData = sortData ( data , props . sortKey , props . sortOrder ) ; const cleanedData = cleanData ( sortedData , props ) ; return addEventKeys ( props , cleanedData ) ; }
Returns formatted data. Data accessors are applied, and string values are replaced.
@param {Array} dataset: the original domain
@param {Object} props: the props object
@param {Array} expectedKeys: an array of expected data keys
@returns {Array} the formatted data
Returns formatted data . Data accessors are applied and string values are replaced .