Added linter configs

.eslintrc.json

@@ -0,0 +1,50 @@
+{
+    "extends": "eslint:recommended",
+    "env": {
+        "node": true,
+        "es6": true
+    },
+    "parserOptions": {
+        "ecmaVersion": 2021
+    },
+    "rules": {
+        "arrow-spacing": ["warn", { "before": true, "after": true }],
+        "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+        "comma-dangle": ["error", "always-multiline"],
+        "comma-spacing": "error",
+        "comma-style": "error",
+        "curly": ["error", "multi-line", "consistent"],
+        "dot-location": ["error", "property"],
+        "handle-callback-err": "off",
+        "indent": ["error", 4],
+        "keyword-spacing": "error",
+        "max-nested-callbacks": ["error", { "max": 4 }],
+        "max-statements-per-line": ["error", { "max": 2 }],
+        "no-console": "off",
+        "no-empty-function": "error",
+        "no-floating-decimal": "error",
+        "no-inline-comments": "error",
+        "no-lonely-if": "error",
+        "no-multi-spaces": "error",
+        "no-multiple-empty-lines": ["error", { "max": 2, "maxEOF": 1, "maxBOF": 0 }],
+        "no-shadow": ["error", { "allow": ["err", "resolve", "reject"] }],
+        "no-trailing-spaces": ["error"],
+        "no-var": "error",
+        "object-curly-spacing": ["error", "always"],
+        "prefer-const": "error",
+        "quotes": ["error", "double"],
+        "semi": ["error", "never"],
+        "space-before-blocks": "error",
+        "space-before-function-paren": ["error", {
+            "anonymous": "never",
+            "named": "never",
+            "asyncArrow": "always"
+        }],
+        "space-in-parens": "error",
+        "space-infix-ops": "error",
+        "space-unary-ops": "error",
+        "spaced-comment": "error",
+        "yoda": "error"
+    }
+}
+

.tidy.conf

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+anchor-as-name: no  #?
+doctype: omit
+drop-empty-paras: no
+fix-backslash: no
+fix-bad-comments: no
+fix-uri:no
+hide-endtags: yes   #?
+#input-xml: yes     #?
+join-styles: no
+literal-attributes: yes
+lower-literals: no
+merge-divs: no
+merge-spans: no
+output-html: yes
+preserve-entities: yes
+quote-ampersand: no
+quote-nbsp: no
+show-body-only: auto
+
+#Diagnostics Options Reference
+show-errors: 0
+show-warnings: 0
+
+#Pretty Print Options Reference
+break-before-br: yes
+indent: yes
+indent-attributes: no   #default
+indent-spaces: 4
+tab-size: 4
+wrap: 132
+wrap-asp: no
+wrap-jste: no
+wrap-php: no
+wrap-sections: no
+
+#Character Encoding Options Reference
+char-encoding: utf8
+
+#Miscellaneous Options Reference
+force-output: yes
+quiet: yes
+tidy-mark: no