export class Tool {
  /**
   * 空校驗 null或""都返回true
   */
  public static isEmpty (obj: any) {
    if ((typeof obj === 'string')) {
      return !obj || obj.replace(/\s+/g, "") === ""
    } else {
      return (!obj || JSON.stringify(obj) === "{}" || obj.length === 0);
    }
  }

  /**
   * 非空校驗
   */
  public static isNotEmpty (obj: any) {
    return !this.isEmpty(obj);
  }

  /**
   * 物件複製
   * @param obj
   */
  public static copy (obj: any) {
    if (Tool.isNotEmpty(obj)) {
      return JSON.parse(JSON.stringify(obj));
    }
  }

  /**
   * 使用遞迴將陣列轉為樹形結構
   * 父ID屬性為parent
   */
  public static array2Tree (array: any, parentId: number) {
    if (Tool.isEmpty(array)) {
      return [];
    }

    const result = [];
    for (let i = 0; i < array.length; i++) {
      const c = array[i];
      // console.log(Number(c.parent), Number(parentId));
      if (Number(c.parent) === Number(parentId)) {
        result.push(c);

        // 遞迴檢視當前節點對應的子節點
        const children = Tool.array2Tree(array, c.id);
        if (Tool.isNotEmpty(children)) {
          c.children = children;
        }
      }
    }
    return result;
  }

  /**
   * 隨機生成[len]長度的[radix]進位制數
   * @param len
   * @param radix 預設62
   * @returns {string}
   */
  public static uuid (len: number, radix = 62) {
    const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');
    const uuid = [];
    radix = radix || chars.length;

    for (let i = 0; i < len; i++) {
      uuid[i] = chars[0 | Math.random() * radix];
    }

    return uuid.join('');
  }
}

 

使用方法：

<script lang="ts">
   
    import {Tool} from "@/utils/tool";

    export default defineComponent({
            // 省略其他內容

            // 元件載入完成後執行
            setup() {

                const edit = (record: any) => {
                     modalVisible.value = true;
                     // 複製物件值，防止影響表單響應式資料
                     ebook.value = Tool.copy(record);
                };

            }
    }）

</script>