04369be error TS1501: This regular expression flag is only available when targeting 'es2018' or later.

[darktohka]

Steps to reproduce

1. Clone https://github.com/FreeTubeApp/FreeTube
2. Install youtubei.js from git:
   "youtubei.js": "git+https://github.com/LuanRT/YouTube.js.git"
3. Run yarn to install new version of youtubei.js

Failure Logs

$ npm run build

> [email protected] build
> npm run clean && npm run build:parser-map && npm run build:proto && npm run build:esm && npm run bundle:node && npm run bundle:browser && npm run bundle:browser:prod && npm run bundle:cf-worker && npm run bundle:react-native


> [email protected] clean
> npx rimraf ./dist/src ./dist/package.json ./bundle/browser.js ./bundle/browser.js.map ./bundle/browser.min.js ./bundle/browser.min.js.map ./bundle/node.cjs ./bundle/node.cjs.map ./bundle/cf-worker.js ./bundle/cf-worker.js.map ./bundle/react-native.js ./bundle/react-native.js.map ./deno


> [email protected] build:parser-map
> node ./dev-scripts/gen-parser-map.mjs


> [email protected] build:proto
> npx pb-gen-ts --entry-path="src/proto" --out-dir="src/proto/generated" --ext-in-import=".js"


> [email protected] build:esm
> npx tspc

src/core/Player.ts:224:185 - error TS1501: This regular expression flag is only available when targeting 'es2018' or later.

224     const match = data.match(/b=(?:a\.split\(|String\.prototype\.split\.call\(a,)\n?(?:""|\("",""\))\).*?\}return (?:b\.join\(|Array\.prototype\.join\.call\(b,)\n?(?:""|\("",""\))\)\}/s);
                                                                                                                                                                                            ~


Found 1 error in src/core/Player.ts:224

Expected behavior

The esm build succeeds.

Current behavior

The esm build fails.

Version

Default

Anything else?

Suggest changing tsconfig.json to target es2018

Change that broke build: 04369be

Checklist

• I am running the latest version.
• I checked the documentation and found no answer.
• I have searched the existing issues and made sure this is not a duplicate.
• I have provided sufficient information.

[darktohka]

Proposed PR to fix this issue and #717: #718