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henry_viii

A couple of reasons that contribute to Bun's performance are:

1) using JavaScriptCore instead of V8

2) porting esbuild from Go to Zig

I have a couple of questions about (2):

1. How long did it take you to port esbuild?

2. Why did you choose to port esbuild to Zig instead of another language e.g. V?

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Jarred didn't port esbuild, his vision/ambition is far beyond that for bun. But even as a transpiler, Jarred made different decisions about the compilation process. Also time doesn't really mean the same thing, this brosef works 80hrs/week on this stuff, and he's been doing that for over a year.

He chose Zig because it's a good language for performance sensitive applications and found himself to be very productive in it.

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