Type-Modifiers on Dev & Platform Engineering Hubhttps://rhidayat.work/topics/type-modifiers/Recent content in Type-Modifiers on Dev & Platform Engineering HubHugo -- gohugo.ioen© 2026 Rachmat HidayatSun, 09 Aug 2026 12:25:00 +0000TS Ep 39: Mapped Type Modifiers (`+`, `-`, `?`, `readonly`)https://rhidayat.work/series/typescript/intermediate/15-mapped-types-modifiers/Sun, 09 Aug 2026 12:25:00 +0000https://rhidayat.work/series/typescript/intermediate/15-mapped-types-modifiers/An in-depth guide to Mapped Type Modifiers in TypeScript. Learn how to preserve, add (<code>+</code>), or strip (<code>-</code>) property modifiers like <code>readonly</code> and <code>?</code>. We explore how these mapping modifiers power TypeScript&rsquo;s built-in <code>Partial</code>, <code>Required</code>, and <code>Readonly</code> utility types.