How to use webpack-chain to add appendTsSuffixTo options to ts-loader?
Look into the section on modifying options for loaders:
config.module .rule('typescript') .use('ts-loader') .tap(options => merge(options, { appendTsSuffixTo: [/\.vue$/] }));Update
Here's the relevant docs for merging objects.
This GitHub thread provides good examples.
// preserve existing optionsconfig.module .rule('typescript') .use('ts-loader') .tap(options => ({ ...options, { appendTsSuffixTo: [/\.vue$/] }}));