Vuex: Move project to typescript (not just add a definition file)

[lil5]

What problem does this feature solve?

Any overlooked type errors in the current project

The internet is full of reasons to move to typescript.

What does the proposed API look like?

Moving all *.js files to *.ts
And adding a tsconfig.json file to build the js files

[pikax]

Check v4 branch.

[lil5]

@pikax A quick look at the src directory in branch shows .js files
https://github.com/vuejs/vuex/tree/4.0/src

[pikax]

My mistake.

Renaming the files to .ts is not a good solution.

[lil5]

@pikax how so?

[kiaking]

We're planning to do it in Vuex 5! Currently, just changing Vuex 4's .js to .ts file will not improve any typings so I believe it's not worth it. Vuex 5 will still take some more time but stay tuned 👍