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@kondei

js ファイルから JSDoc で d.ts の型を参照して型チェックする ( jest.config.js を例に)

More than 1 year has passed since last update.

概要

jsにd.tsの型をつけ、補完したり、間違った値を入れたら分かるようにする

方法

// @ts-check
/**
 * @type {import('@jest/types').Config.InitialOptions}
 */
const config = {
  ...
};

module.exports = config;

備考

  • VSCodeでしか確認していない
  • @typedef でもimportが使える
  • allowJsとcheckJsを有効にしたら // @ts-check 不要かもしれない

参考

https://www.reddit.com/r/javascript/comments/aezwdh/using_typescript_declaration_files_with_jsdoc/
https://gist.github.com/hrdtbs/f7e567c0738725a16a9de7326dc11127

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kondei
justincase
テクノロジーで保険を身近にする保険スタートアップです。

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Help us understand the problem. What is going on with this article?