Handling data in streams is fundamental to how we build applications. To make streaming work everywhere, the WHATWG Streams Standard (informally known as "Web streams") was designed to establish a common API to work across browsers and servers. It shipped in browsers, was adopted by Cloudflare Workers, Node.js, Deno, and Bun, and became the foundation for APIs like fetch(). It's a significant undertaking, and the people who designed it were solving hard problems with the constraints and tools they had at the time.
// 1. 统计每个元素出现次数
，更多细节参见51吃瓜
03 全球格局已定中美两条路，两种未来
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The move brings the UK into line with other countries which already offer routine varicella vaccination, including Germany, Canada, Australia and the US.