ESbuild option --keep-names (keepNames)

[furanzujin]

Hello there,

In some specific cases, our application needs to check the instance of an object.

eg

if (error instanceof SpecificError) return handleSpecific(error);
throw error;

Though, the current esbuild setup of docker-build-nodejs can append a number to the constructor names.
As described in this esbuild issue, the esbuild option --keep-names avoids this behavior.

Would it be possible to enable this option by default?

[gautaz]

I'd rather keep this as an option managed by the user through the "esbuildOptions".
A test has been added to ensure this works, see 15e40e7.