Function performRestyleLike

js/src/widget.ts:1802–1836

* Perform a Plotly.restyle like operation on an input object array * * @param {Array. } parentArray * The object that the restyle operation should be applied to * @param {Object} restyleData * A restyle object as accepted by Plotly.restyle * @param {Array. } restyleTraces * A

(
  parentArray: any[],
  restyleData: any,
  restyleTraces: number[]
)

 *
 */
function performRestyleLike(
  parentArray: any[],
  restyleData: any,
  restyleTraces: number[]
) {
  // Loop over the properties of restyleData
  for (var rawKey in restyleData) {
    if (!restyleData.hasOwnProperty(rawKey)) {
      continue;
    }

    // Extract value for property and normalize into a value list
    var valArray = restyleData[rawKey];
    if (!Array.isArray(valArray)) {
      valArray = [valArray];
    }

    // Loop over the indexes of the traces being restyled
    for (var i = 0; i < restyleTraces.length; i++) {
      // Get trace object
      var traceInd = restyleTraces[i];
      var trace = parentArray[traceInd];

      // Extract value for this trace
      var singleVal = valArray[i % valArray.length];

      // Set property value
      if (singleVal === null) {
        _.unset(trace, rawKey);
      } else if (singleVal !== undefined) {
        _.set(trace, rawKey, singleVal);
      }
    }
  }
}

/**
 * Perform a Plotly.moveTraces like operation on an input object array