Update dev dependencies

Includes updating ESLint and fixing the lint errors it found.

Author: domenic

.eslintignore

@@ -0,0 +1,24 @@
+import domenicConfig from "@domenic/eslint-config";
+import globals from "globals";
+export default [
+  {
+    ignores: [
+      "lib/mappingTable.json",
+      "lib/regexes.js"
+    ]
+  },
+  {
+    files: ["**/*.js"],
+    languageOptions: {
+      sourceType: "commonjs",
+      globals: globals.node
+    }
+  },
+  ...domenicConfig,
+  {
+    files: ["scripts/**.js"],
+    rules: {
+      "no-console": "off"
+    }
+  }
+];

.eslintrc.json

@@ -199,7 +199,7 @@ function isBidiDomain(labels) {
     if (label.startsWith("xn--")) {
       try {
         return punycode.decode(label.substring(4));
-      } catch (err) {
+      } catch {
         return "";
       }
     }
@@ -284,7 +284,7 @@ function toASCII(domainName, {
     if (containsNonASCII(l)) {
       try {
         return `xn--${punycode.encode(l)}`;
-      } catch (e) {
+      } catch {
         result.error = true;
       }
     }

eslint.config.mjs

@@ -4,7 +4,9 @@ module.exports.STATUS_MAPPING = {
   mapped: 1,
   valid: 2,
   disallowed: 3,
+  // eslint-disable-next-line camelcase
   disallowed_STD3_valid: 4,
+  // eslint-disable-next-line camelcase
   disallowed_STD3_mapped: 5,
   deviation: 6,
   ignored: 7