feat: add typescript support using typescript-build

[ChangJoo-Park]

I do not add any other typescript dependencies like vue-property-decorator and vue-function-api . It may depends on users.
and hard to decide add tsconfig.json by default. please give me a suggestions.

[ChangJoo-Park]

I don't know why circleci failed when testing with ava?

[kevinmarrec]

Thanks @ChangJoo-Park for working on this !

I let a little comment about package.json.
Aside that, I think user should have the choice to use Runtime support, and the default layouts/pages/components should be converted in TypeScript (but i guess it's hard stuff doing it for every case depending of selected options)

[ChangJoo-Park]

Thanks @ChangJoo-Park for working on this !

I let a little comment about package.json.
Aside that, I think user should have the choice to use Runtime support, and the default layouts/pages/components should be converted in TypeScript (but i guess it's hard stuff doing it for every case depending of selected options)

I think so, Runtime support is important.
when I create this PR, I did not use typescript-runtime and I didn't care about it.
also I will try to change components using TypeScript.
Thanks @kevinmarrec

[ChangJoo-Park]

Can choose @nuxt/typescript-runtime when recommended none server + typescript selected

[kevinmarrec]

Almost perfect :)

[ChangJoo-Park]

all requests are done.

• default language : js
• show jsconfig.json only when select js
• tsconfig.json always added when choose ts
• show typescript nuxt cookbook links when choose ts
• update <script lang="ts"> in index.vue` for ts

please review @kevinmarrec 🙇

[kevinmarrec]

@ChangJoo-Park Could you also take into account https://typescript.nuxtjs.org/guide/lint.html ?
You mostly need to

1. Change https://github.com/nuxt/create-nuxt-app/blob/master/template/_package.json#L122 for eslint-config-typescript.
2. Change https://github.com/nuxt/create-nuxt-app/blob/master/template/_.eslintrc.js#L16 by @nuxtjs/eslint-config-typescript
3. Remove https://github.com/nuxt/create-nuxt-app/blob/master/template/_.eslintrc.js#L12 parserOptions (@nuxtjs/eslint-config-typescript already set it to a TypeScript parser)

I also think that for Nuxt TypeScript projects https://github.com/nuxt/create-nuxt-app/blob/master/template/_package.json#L123 (@nuxtjs/eslint-module) should be removed, I need to make typescript-build module enables eslint option of fork-ts-checker-webpack-plugin true by default.

[ChangJoo-Park]

@ChangJoo-Park Could you also take into account https://typescript.nuxtjs.org/guide/lint.html ?
You mostly need to

1. Change https://github.com/nuxt/create-nuxt-app/blob/master/template/_package.json#L122 for eslint-config-typescript.
2. Change https://github.com/nuxt/create-nuxt-app/blob/master/template/_.eslintrc.js#L16 by @nuxtjs/eslint-config-typescript
3. Remove https://github.com/nuxt/create-nuxt-app/blob/master/template/_.eslintrc.js#L12 parserOptions (@nuxtjs/eslint-config-typescript already set it to a TypeScript parser)

I also think that for Nuxt TypeScript projects https://github.com/nuxt/create-nuxt-app/blob/master/template/_package.json#L123 (@nuxtjs/eslint-module) should be removed, I need to make typescript-build module enables eslint option of fork-ts-checker-webpack-plugin true by default.

1,2. Changed @nuxtjs/eslint-config-typescript from @nuxtjs/eslint-config and @nuxtjs/eslint-module.
3. remove parserOptions when using TypeScript

• Set tsRuntime false when select JavaScript

[ChangJoo-Park]

I'll check this :)

[ChangJoo-Park]

@kevinmarrec Can you try lint on ubuntu? I tried my macbook (MacOS Catalina, Node.js v10), lint works well. npm run lint too.
😭

[kevinmarrec]

@ChangJoo-Park

Failing on my Ubuntu 19.04 :

It's cause before there wasn't template conditional check in template/frameworks/jest/jest.config.js

Can you confirm that the template correctly has the right content with or without TypeScript when generating new project with your changes ?

We can eventually add an entry in .eslintignore to prevent eslint to lint-check it : https://github.com/nuxt/create-nuxt-app/blob/master/.eslintignore

There are already 2 Vue files prevented to be linted cause there are using a template pattern <%= %>
https://github.com/nuxt/create-nuxt-app/blob/master/template/nuxt/pages/index.vue#L6
https://github.com/nuxt/create-nuxt-app/blob/master/template/frameworks/iview/pages/index.vue#L6

Adding template/frameworks/jest/jest.config.js fixes the lint issue.

[vinayakkulkarni]

We also have to test TS integration against all UI & testing frameworks right?

I can help out with Ava

[NickBolles]

@vinayakkulkarni See my PR here: https://github.com/ChangJoo-Park/create-nuxt-app/pull/1

That covers a big number of them. After this gets merged I can submit a followup from that branch

[kevinmarrec]

@ChangJoo-Park Can you fix the tests by following my last instructions ? Thanks !

[ChangJoo-Park]

I try to fix out this lint failing, I didn't 😭

[kevinmarrec]

@ChangJoo-Park Seems the lint is fixed, but that's the tests that are failing now (the test suite wasn't previously processed cause of the lintstep resulting in an error)

Some of them are passing, seems the others have been broken by some change ?

[kevinmarrec]

@ChangJoo-Park Could you fix the conflicts ? :)

[ChangJoo-Park]

Sure I'll fix it

[ChangJoo-Park]

Thanks @atinux :)

[vinayakkulkarni]

Whooo!

[murata-kawairi-business]

Thanks! for Contributors

[davelsan]

Thank you for this PR, I was awaiting it with expectation. I have created the first app and it resembles very closely what I had already been using for myself.

I've made a few suggestions in #448, including fixes to some problems that might arise after creating a new app. I'm leaving this comment here for anybody that might experience issues, in case it can help.