Function getLastIndexInStack

src/core/core.datasetController.js:141–150

(stack, vScale, positive, type)

}

function getLastIndexInStack(stack, vScale, positive, type) {
  for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) {
    const value = stack[meta.index];
    if ((positive && value > 0) || (!positive && value < 0)) {
      return meta.index;
    }
  }

  return null;
}

function updateStacks(controller, parsed) {
  const {chart, _cachedMeta: meta} = controller;