父子關系的數組和樹形結構數據相互轉化

父子關系的數組和樹形結構數據相互轉化

/**
 * @description 父子關系的數組轉換成樹形結構數據
 * @param data
 * @returns {*}
 */
export function translateDataToTree(data) {
  const parent = data.filter(
    (value) => value.parentId === "undefined" || value.parentId == null
  );
  const children = data.filter(
    (value) => value.parentId !== "undefined" && value.parentId != null
  );
  const translator = (parent, children) => {
    parent.forEach((parent) => {
      children.forEach((current, index) => {
        if (current.parentId === parent.id) {
          const temp = JSON.parse(JSON.stringify(children));
          temp.splice(index, 1);
          translator([current], temp);
          typeof parent.children !== "undefined"
            ? parent.children.push(current)
            : (parent.children = [current]);
        }
      });
    });
  };
  translator(parent, children);
  return parent;
}

/**
 * @description 樹形結構數據轉換成父子關系的數組
 * @param data
 * @returns {[]}
 */
export function translateTreeToData(data) {
  const result = [];
  data.forEach((item) => {
    const loop = (data) => {
      result.push({
        id: data.id,
        name: data.name,
        parentId: data.parentId,
      });
      const child = data.children;
      if (child) {
        for (let i = 0; i < child.length; i++) {
          loop(child[i]);
        }
      }
    };
    loop(item);
  });
  return result;
}

參考：

https://github.com/chuzhixin/vue-admin-beautiful

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