Clone-on-write — or Cow for short — is a convenient wrapper that allows us to express the idea of optional ownership in Rust. In this article, we will learn what it exactly is, what problem it aims to solve, and how we can use it in our Rust code. Jump ahead: The problem with occasional mutation Use cases for Cow in Rust and other domains Understanding Cow in Rust Using Cow in your Rust code As a
Leonardo Losoviz Freelance developer and writer, with an ongoing quest to integrate innovative paradigms into existing PHP frameworks, and unify all of them into a single mental model. Currently, if we want to use HTTP caching in GraphQL, we must use a GraphQL server that supports persisted queries. That’s because the persisted query will already have the GraphQL query stored in the server; as suc
Editor’s note: This guide was last updated in March 2021 to reflect changes introduced in the most Deno release, Deno v1.7.0, and to include an updated Deno vs. Node.js performance comparison. Ryan Dahl, creator of Node.js, officially released Deno in May 2018. This new runtime for JavaScript was designed to fix a long list of inherent problems in Node.js. Don’t get me wrong: Node is a great serve
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