@rc-component/cascader/es/utils/treeUtil.js

cascade select ui component for react

import { SHOW_CHILD } from "./commonUtil";
export function formatStrategyValues(pathKeys, getKeyPathEntities, showCheckedStrategy) {
  const valueSet = new Set(pathKeys);
  const keyPathEntities = getKeyPathEntities();
  return pathKeys.filter(key => {
    const entity = keyPathEntities[key];
    const parent = entity ? entity.parent : null;
    const children = entity ? entity.children : null;
    if (entity && entity.node.disabled) {
      return true;
    }
    return showCheckedStrategy === SHOW_CHILD ? !(children && children.some(child => child.key && valueSet.has(child.key))) : !(parent && !parent.node.disabled && valueSet.has(parent.key));
  });
}
export function toPathOptions(valueCells, options, fieldNames,
// Used for loadingKeys which saved loaded keys as string
stringMode = false) {
  let currentList = options;
  const valueOptions = [];
  for (let i = 0; i < valueCells.length; i += 1) {
    const valueCell = valueCells[i];
    const foundIndex = currentList?.findIndex(option => {
      const val = option[fieldNames.value];
      return stringMode ? String(val) === String(valueCell) : val === valueCell;
    });
    const foundOption = foundIndex !== -1 ? currentList?.[foundIndex] : null;
    valueOptions.push({
      value: foundOption?.[fieldNames.value] ?? valueCell,
      index: foundIndex,
      option: foundOption
    });
    currentList = foundOption?.[fieldNames.children];
  }
  return valueOptions;
}