What is the most recommend way about using SWC in Node ?

[alexzhang1030]

I have tested the performance differences between swc.transform and swc.transformSync and babel.transform. Here is the repo

The result is

swc:
  2 680 ops/s, ±27.15%    | slowest, 84.03% slower

swc sync:
  3 489 ops/s, ±36.64%    | 79.21% slower

babel:
  16 781 ops/s, ±2.44%   | fastest

So the fastest is babel. Is there something I missed? What is the most recommend way about using SWC in Node ?

Plz help me 🫠

[kdy1]

Babel does nothing by default. If you want to benchmark it, you have to pass compatibility passes to babel

[alexzhang1030]

Got it, thank you. BTW, is there any way to disable default compat of SWC, cause in some cases I only need plugin to control AST.

[alexzhang1030]

Hi kdy1 @kdy1 , could you answer this question? I will be very thankful ! 😄