模板字面量类型
Jan-17 · 1min
模板字面量类型（Template Literal Types）
模板字面量类型是 TypeScript 中的一种类型，它允许你创建可以包含变量的字符串类型。
ts
type World = "world";
type Greeting = `hello ${World}`; // "hello world"
ts
type EmailLocaleIDs = "welcome_email" | "email_heading";
type FooterLocaleIDs = "footer_title" | "footer_sendoff";
type AllLocaleIDs = `${EmailLocaleIDs | FooterLocaleIDs}_id`;
// "welcome_email_id" | "email_heading_id" | "footer_title_id" | "footer_sendoff_id"