TypeScript fp.fp函数代码示例

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了TypeScript中lowdb/lib/fp.fp函数的典型用法代码示例。如果您正苦于以下问题：TypeScript fp函数的具体用法？TypeScript fp怎么用？TypeScript fp使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了fp函数的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: async

  async () => {
    const adapterAsync = new FileAsync<DbSchema>("test.json");
    const dbAsyncPromise = lowfp(adapterAsync);
    const dbAsync = await dbAsyncPromise;
    const postsWithDefault = dbAsync("posts", [{ title: "baz" }] as Post[]);

    const func: Promise<Post[]> = postsWithDefault.write(post => [
      ...post,
      { title: "another" }
    ]);
  };

开发者ID:csrakowski，项目名称:DefinitelyTyped，代码行数:11，代码来源:lowdb-tests.ts

示例2: lowfp

() => {
  const adapterLS = new LocalStorage<DbSchema>("test.json");
  const dbFP = lowfp(adapterLS);
  // Get posts
  const postsFP: low.FpReturn<Post[], low.AdapterSync<DbSchema>> = dbFP(
    "posts"
  );

  // replace posts with a new array resulting from concat
  // and persist database
  const write: Post[] = postsFP.write(
    concat({ title: "lowdb is awesome", views: random(0, 5) })
  );

  // Find post by id
  const post: Post = postsFP(find({ id: 1 }));

  // Find top 5 fives posts
  const popular: Post[] = postsFP([
    sortBy("views") as PostsAction,
    take(5) as PostsAction
  ]);

  const filtered: Post[] = dbFP("posts")(filter({ published: true }));
  const writeAction: Post[] = dbFP("posts").write(concat({ id: "123" }));
  const writeAction2: string = dbFP(["user", "name"]).write(set("typicode"));

  async () => {
    const adapterAsync = new FileAsync<DbSchema>("test.json");
    const dbAsyncPromise = lowfp(adapterAsync);
    const dbAsync = await dbAsyncPromise;
    const postsWithDefault: low.FpReturn<
      Post[],
      low.AdapterAsync<DbSchema>
    > = dbAsync("posts", [{ title: "baz" }] as Post[]);

    const func: Promise<Post[]> = postsWithDefault.write(post => [
      ...post,
      { title: "another" }
    ]);
  };

  type PostsAction = (posts: Post[]) => Post[];
};

开发者ID:Batbold-Gansukh，项目名称:DefinitelyTyped，代码行数:44，代码来源:lowdb-tests.ts

注：本文中的lowdb/lib/fp.fp函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。