{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.m-ito27.com%2Fentry%2F2026%2F07%2F14%2F223617\" title=\"\uff08\u5b66\u7fd2\u30e1\u30e2\uff09\u300e\u30b5\u30d0\u30a4\u30d0\u30ebTypeScript\u300f\u3092\u5b66\u3076Part2 \u301c\u66f8\u3044\u3066\u5b66\u3076\u7de8\u301c - PLAY BALL\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"m-ito27","title":"\uff08\u5b66\u7fd2\u30e1\u30e2\uff09\u300e\u30b5\u30d0\u30a4\u30d0\u30ebTypeScript\u300f\u3092\u5b66\u3076Part2 \u301c\u66f8\u3044\u3066\u5b66\u3076\u7de8\u301c","height":"190","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"blog_title":"PLAY BALL","published":"2026-07-14 22:36:17","version":"1.0","provider_url":"https://hatena.blog","description":"\u300e\u30b5\u30d0\u30a4\u30d0\u30ebTypeScript\u300f\u306e\u300c\u4f5c\u3063\u3066\u5b66\u3076TypeScript\u300d\u3092\u3084\u3063\u3066\u307f\u305f\u306e\u3067\u3001\u5370\u8c61\u306b\u6b8b\u3063\u305f\u70b9\u306a\u3069\u3001\u5b66\u7fd2\u30e1\u30e2\u3067\u3059\u3002 typescriptbook.jp \u578b\u5b9a\u7fa9\u3092\u4f7f\u3046\u5834\u9762\u306e\u4f8b \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u3082\u4fbf\u5229\u3060\u306a\u3068\u601d\u3063\u305f\u308a\u3057\u305f typescriptbook.jp vitest \u3068\u308a\u3042\u3048\u305a\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u3060\u3051\u3060\u304c\u3001RSpec\u3084minitest\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u3001\u8aad\u3081\u308b\u306a\u3001\u3068\u3044\u3046\u611f\u60f3 \u4ed6\u306e\u8a00\u8a9e\u306e\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\u3082\u6c17\u306b\u306a\u3063\u305f typescriptbook.jp import { expect, test } from \"vitest\"; import { isZero } from \"./is-zero\"; \u2026","width":"100%","author_url":"https://blog.hatena.ne.jp/m-ito27/","image_url":null,"type":"rich","provider_name":"Hatena Blog","blog_url":"https://blog.m-ito27.com/","url":"https://blog.m-ito27.com/entry/2026/07/14/223617"}