Quick fix for using bracket accessor instead of get/set on Map

[mjbvz]

TypeScript Version: 3.6.0-dev.20190814

Search Terms:

• quick fix
• code action
• getCodeFixes

Code With strict: true:

class Foo {
    public readonly map = new Map<string, string>();

    constructor() {
        console.log(this.map['af123']);``
    }
}

This produces the error:

Element implicitly has an 'any' type because type 'Map<string, string>' has no index signature. Did you mean to call 'get' ?

Expected behavior: The error message suggests a fix. We should should be a quick fix that changes the code to call .get

Actual behavior: No quick fix returned.

[RyanCavanaugh]

Nice idea 🙂

[bhushan-shah-dev]

Wanted to try this out as a first issue.

I think I need to create a new fix within src/services/codefixes that will apply to Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_Did_you_mean_to_call_1 error code.

Any further pointers?

[r3a1d3a1]

Do you guys know how to simply use square brackets w/o getting that error?! I don't like verbosity of 'get'.

[RyanCavanaugh]

Do you guys know how to simply use square brackets w/o getting that error?!

The problem with square brackets is that they don't work...

[r3a1d3a1]

It works when using Record, but I'm not sure if it's exactly equivalent.

[RyanCavanaugh]

Record and Map are different things. See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map