How do I specify eslint rule schema with array of objects

Question

Trying to set a schema for my eslint rule. The intended configuration is as follows:

'my-rule': ['error', [
  {'any-key': ['array', 'of', 'strings']},
  {'some-other-key': ['array', 'of', 'strings']},
  ...etc
]]

I found out that it is possible to allow any non-enum property names, but I'm not sure how to specify their value types:

    schema: [
        {
            type: 'array',
            items: {
                type: 'object',
                propertyNames: {
                    type: 'string',
                    // ??? - how do I specify array of strings here?
                },
            }
        }
    ],

Is this possible at all?

Answer 1

I don't think you can use propertyNames to specify the value types.

Wouldn't patternProperties work better for your purpose?

schema: [
    {
        type: 'array',
        items: {
            type: 'object',
            patternProperties: {
                ".": {
                    type: "array",
                    items: {type: "string"}
                }
            },
        }
    }
]