如何在inquirer.js 中自动回答问题？答案

【问题标题】：How can I auto answer questions in inquirer.js?如何在inquirer.js 中自动回答问题？
【发布时间】：2023-03-31 04:47:01
【问题描述】：

我正在使用 typescript 编写一个小型 CLI，并且我有一个命令，它基本上允许我生成一个包含默认值的 json 文件（就像 npm init -y），但我不知道如何自动回答询问者的问题。

这是我目前得到的：

export const initializeConfig = (project: string, ...args: boolean[]) => {
  prompt([
    {
      type: "input",
      name: "name",
      message: "What is the name of the project?",
      default: basename(cwd()),
      when: () => args.every((arg) => arg === false),
    },
    {
      type: "list",
      name: "project",
      message: "What is the type of the project?",
      choices: ["Node", "Python"],
      default: project,
      when: () => args.every((arg) => arg === false),
    },
  ])
    .then((answers: Answers) => {
      config = setConfig({ name: answers.name });
      config = setConfig({ project: answers.project });
    })
    .then(() =>
      prompt([
        {
          type: "input",
          name: "path",
          message: "Where is your project root located?",
          default: ".",
          when: () => args.every((arg) => arg === false),
        },
        {
          type: "input",
          name: "ignore",
          message: "What do you want to ignore? (comma separated)",
          default: defaultIgnores(config.project).ignore,
          when: () => args.every((arg) => arg === false),
        },
      ]).then((answers: Answers) => {
        config = setConfig(ignoreFiles(config.project, answers.ignore));
        createConfig(answers.path, config);
      })
    );
};

我想如果我用when() 跳过/隐藏问题，它会使用默认值，但事实并非如此。总是undefined。

目前在网上没有找到这个话题。有什么想法吗？

【问题讨论】：

标签： javascript node.js command-line-interface inquirer

【解决方案1】：

有点像生活小窍门，但我设法通过创建一个返回默认值对象的defaults() 函数在查询器中“自动回答”我的问题。

如果我的答案对象为空，我可以使用它们，如下所示：

const defaults = (project: string) => {
  return {
    name: basename(cwd()),
    project,
    path: ".",
    ignore: defaultIgnores(project).ignore,
  };
};

export let config: any = {
  version,
};

export const initializeConfig = (project: string, ...args: boolean[]) => {
  prompt([
    {
      type: "input",
      name: "name",
      message: "What is the name of the project?",
      default: defaults(project).name,
      when: () => args.every((arg) => arg === false),
    },
    {
      type: "list",
      name: "project",
      message: "What is the type of the project?",
      choices: ["Node", "Python"],
      default: defaults(project).project,
      when: () => args.every((arg) => arg === false),
    },
  ])
    .then((answers: Answers) => {
      const { name, project: projectName } = defaults(project);

      config = setConfig({ name: answers.name || name });
      config = setConfig({ project: answers.project || projectName });
    })
    .then(() =>
      prompt([
        {
          type: "input",
          name: "path",
          message: "Where is your project root located?",
          default: defaults(project).path,
          when: () => args.every((arg) => arg === false),
        },
        {
          type: "input",
          name: "ignore",
          message: "What do you want to ignore? (comma separated)",
          default: defaults(project).ignore,
          when: () => args.every((arg) => arg === false),
        },
      ]).then((answers: Answers) => {
        const { ignore, path } = defaults(project);

        config = setConfig(
          ignoreFiles(config.project, (answers.ignore || ignore)!)
        );
        createConfig(answers.path || path, config);
      })
    );
};

【讨论】：