qr-code-scanner: add eslint support

packages/qr-code-scanner/.eslintignore

+/vendor/**
+/dist/**
+/*.js
\ No newline at end of file

packages/qr-code-scanner/.eslintrc.json

+{
+    "env": {
+        "browser": true,
+        "es6": true,
+        "mocha": true
+    },
+    "extends": ["eslint:recommended", "plugin:jsdoc/recommended"],
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly"
+    },
+    "parser": "babel-eslint",
+    "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module"
+    },
+    "rules": {
+        "no-unused-vars": ["error", { "args": "none" }],
+        "semi": [2, "always"],
+        "jsdoc/require-jsdoc": 0,
+        "jsdoc/require-param-description": 0,
+        "jsdoc/require-returns": 0,
+        "jsdoc/require-param-type": 0
+    }
+}
\ No newline at end of file

packages/qr-code-scanner/package.json

@@ -10,6 +10,8 @@
     "@rollup/plugin-node-resolve": "^9.0.0",
     "@rollup/plugin-url": "^5.0.1",
     "chai": "^4.2.0",
+    "eslint": "^7.11.0",
+    "eslint-plugin-jsdoc": "^30.7.3",
     "i18next-scanner": "^2.10.2",
     "karma": "^5.1.0",
     "karma-chai": "^0.1.0",
@@ -44,6 +46,7 @@
     "watch": "npm run watch-local",
     "watch-local": "rollup -c --watch",
     "watch-dev": "rollup -c --watch --environment BUILD:development",
-    "test": "npm run build-test && karma start --singleRun"
+    "test": "npm run build-test && karma start --singleRun",
+    "lint": "eslint ."
   }
 }

yarn.lock

@@ -3302,6 +3302,19 @@ eslint-plugin-jsdoc@^30.6.4:
     semver "^7.3.2"
     spdx-expression-parse "^3.0.1"
 
+eslint-plugin-jsdoc@^30.7.3:
+  version "30.7.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jsdoc/-/eslint-plugin-jsdoc-30.7.3.tgz#1087642d7c4aba13b97dd7c1fdbcec49cd7dcc72"
+  integrity sha512-slzJeKrm3vXabRYcFBpbUgWgdnATN9rNOFAr7IhmkxmR9Vk/6qN1c/IdvTqVSEctDRQ08chR+Lvk8fRayXgYZg==
+  dependencies:
+    comment-parser "^0.7.6"
+    debug "^4.2.0"
+    jsdoctypeparser "^9.0.0"
+    lodash "^4.17.20"
+    regextras "^0.7.1"
+    semver "^7.3.2"
+    spdx-expression-parse "^3.0.1"
+
 eslint-scope@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-5.1.1.tgz#e786e59a66cb92b3f6c1fb0d508aab174848f48c"
@@ -3327,7 +3340,7 @@ eslint-visitor-keys@^2.0.0:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz#21fdc8fbcd9c795cc0321f0563702095751511a8"
   integrity sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==
 
-eslint@^7.3.1:
+eslint@^7.11.0, eslint@^7.3.1:
   version "7.11.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.11.0.tgz#aaf2d23a0b5f1d652a08edacea0c19f7fadc0b3b"
   integrity sha512-G9+qtYVCHaDi1ZuWzBsOWo2wSwd70TXnU6UHA3cTYHp7gCTXZcpggWFoUVAMRarg68qtPoNfFbzPh+VdOgmwmw==