Perform es-check for dependencies inpackages.json

[matccent]

Requested Update

Allow es-check to check individual modules located in node_modules folder with their nested dependencies in a similar way like are-you-es5 do it.

Scenario:

• I have a frontend react project with dependencies in package.json
• One of those dependencies package-example-in-es2022 includes es2022 code i.e. nullish coalescing
• When I run webpack build, es2022 code in my project gets transpiled by babel, but dependencies from node_modules are not (unless specified in the config), so package-example-in-es2022 with nullish coalescing will cause an issue in browsers like < Chrome 80, < Firefox 72, < Opera 67, < Safari 13.1
• In result I'll end up with build unable to run in browsers with lower versions than specified above

With this feature I would like to be able to identify non-es5 dependencies and list them in a way so they can be easily imported in babel config, so babel will transpile them. I think listing package names is good enough, it can be used then to generate regex easily.

Why Is This Update Needed?

To automate node builds.

If I run es-check in my project, with is a module with "package.json", I would expect to execute es-check for each dependency (and their nested dependencies), and list incompatible modules.

Are There Examples Of This Requested Update Elsewhere?

are-you-es5 unfortunately packages can't detect es2022, probably due to no updates since 2 years