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In this podcast, the hosts discuss the release of Go 1.21, focusing on the addition of generics to the standard library. They also talk about automated optimization, backward compatibility, and new code generation. There is a discussion on the potential of incorporating WebAssembly in Go's backend. Other topics include minor changes in Go related to the flag package, the merits and drawbacks of XML and YAML, and upcoming features in Go 1.21.
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Quick takeaways
- The Go 1.21 release introduces Profile Guided Optimization (PGO), which allows for better performance optimization of binaries.
- Go 1.21 introduces changes to how loop variables are handled, addressing the well-known closure bug.
Deep dives
XML vs YAML: The Case for XML
XML is often considered better than YAML because it is more appropriate for certain use cases. XML, as an extensible markup language, excels when it comes to representing structured and annotated documents, such as books or documents with various formatting and styling requirements. It is not suitable for simple configurations or settings. XML's reputation suffered due to misuse and attempting to use it for tasks that should be handled with other formats. However, JSX in React shows that there are situations where inline XML is advantageous. On the other hand, YAML is generally seen as inferior since it tends to cause issues and has better alternatives like TOML or JSON (used by Caddy). YAML's quirks, such as interpreting version numbers like go 1.20 as go 1.2, can lead to unexpected bugs and frustrations. It is advisable to explore other formats that offer more reliability and consistency.
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