It's strange that they are comparing output size without passing --minify to esbuild. Why compare the size of the debuggable output?
And if you care about output size, you would also need to pass --define:process.env.NODE_ENV=\"production\" to esbuild since the benchmarks include React, and you don't want to bundle both the debug and release versions of React at the same time.
And if you care about output size, you would also need to pass --define:process.env.NODE_ENV=\"production\" to esbuild since the benchmarks include React, and you don't want to bundle both the debug and release versions of React at the same time.