如何将Array.map链从异步等待中关闭? [英] How to Array.map chain off of async await?

问题描述

如何在等待状态下运行Array.map?

How can I run Array.map off of an await?

const CLASS_PATH = 'User/matt/Github/project';
const PACKAGE_JSON = 'package.json';

const walk = async path => {
  let dirs = [];
  for (const file of await readdir(path)) {
    if ((await stat(join(path, file))).isDirectory()) {
      dirs = [
        ...dirs,
        file,
      ];
    }
  }
  return dirs;
};


async function main() {
  const packagePaths = await walk(CLASS_PATH)
        .map(pkgName => join(CLASS_PATH, pkgName, PACKAGE_JSON));

}
main();

推荐答案

始终可以使用方括号来更改操作员的先决条件:

Brackets can always be used to change operator predescendence:

 (await walk(CLASS_PATH)).map(/*...*/)

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