Upgrade eslint and prettier

- reformatted code with new default config
- upgrade to the new eslint flat config

Lockfile 800 -> 500 lines

Author: TrySound

eslint.config.mjs

@@ -0,0 +1,11 @@
+import js from "@eslint/js";
+import globals from "globals";
+
+export default [
+  js.configs.recommended,
+  {
+    languageOptions: {
+      globals: globals.node,
+    },
+  },
+];

lib/index.js

@@ -10,11 +10,11 @@ function ValueParser(value) {
   return new ValueParser(value);
 }
 
-ValueParser.prototype.toString = function() {
+ValueParser.prototype.toString = function () {
   return Array.isArray(this.nodes) ? stringify(this.nodes) : "";
 };
 
-ValueParser.prototype.walk = function(cb, bubble) {
+ValueParser.prototype.walk = function (cb, bubble) {
   walk(this.nodes, cb, bubble);
   return this;
 };

lib/parse.js

@@ -12,7 +12,7 @@ var uUpper = "U".charCodeAt(0);
 var plus = "+".charCodeAt(0);
 var isUnicodeRange = /^[a-f0-9?-]+$/i;
 
-module.exports = function(input) {
+module.exports = function (input) {
   var tokens = [];
   var value = input;
 
@@ -65,7 +65,7 @@ module.exports = function(input) {
           type: "space",
           sourceIndex: pos,
           sourceEndIndex: next,
-          value: token
+          value: token,
         });
       }
 
@@ -78,7 +78,7 @@ module.exports = function(input) {
       token = {
         type: "string",
         sourceIndex: pos,
-        quote: quote
+        quote: quote,
       };
       do {
         escape = false;
@@ -108,7 +108,7 @@ module.exports = function(input) {
       token = {
         type: "comment",
         sourceIndex: pos,
-        sourceEndIndex: next + 2
+        sourceEndIndex: next + 2,
       };
 
       if (next === -1) {
@@ -135,7 +135,7 @@ module.exports = function(input) {
         type: "word",
         sourceIndex: pos - before.length,
         sourceEndIndex: pos + token.length,
-        value: token
+        value: token,
       });
       pos += 1;
       code = value.charCodeAt(pos);
@@ -150,7 +150,7 @@ module.exports = function(input) {
         sourceEndIndex: pos + token.length,
         value: token,
         before: before,
-        after: ""
+        after: "",
       });
       before = "";
 
@@ -170,7 +170,7 @@ module.exports = function(input) {
         type: "function",
         sourceIndex: pos - name.length,
         value: name,
-        before: value.slice(parenthesesOpenPos + 1, next)
+        before: value.slice(parenthesesOpenPos + 1, next),
       };
       pos = next;
 
@@ -204,8 +204,8 @@ module.exports = function(input) {
                 type: "word",
                 sourceIndex: pos,
                 sourceEndIndex: whitespacePos + 1,
-                value: value.slice(pos, whitespacePos + 1)
-              }
+                value: value.slice(pos, whitespacePos + 1),
+              },
             ];
           } else {
             token.nodes = [];
@@ -216,7 +216,7 @@ module.exports = function(input) {
               type: "space",
               sourceIndex: whitespacePos + 1,
               sourceEndIndex: next,
-              value: value.slice(whitespacePos + 1, next)
+              value: value.slice(whitespacePos + 1, next),
             });
           } else {
             token.after = value.slice(whitespacePos + 1, next);
@@ -297,14 +297,14 @@ module.exports = function(input) {
           type: "unicode-range",
           sourceIndex: pos,
           sourceEndIndex: next,
-          value: token
+          value: token,
         });
       } else {
         tokens.push({
           type: "word",
           sourceIndex: pos,
           sourceEndIndex: next,
-          value: token
+          value: token,
         });
       }
 

lib/unit.js

@@ -45,7 +45,7 @@ function likeNumber(value) {
 
 // Consume a number
 // https://www.w3.org/TR/css-syntax-3/#consume-number
-module.exports = function(value) {
+module.exports = function (value) {
   var pos = 0;
   var length = value.length;
   var code;
@@ -115,6 +115,6 @@ module.exports = function(value) {
 
   return {
     number: value.slice(0, pos),
-    unit: value.slice(pos)
+    unit: value.slice(pos),
   };
 };

package.json

@@ -30,15 +30,10 @@
     "lint": "eslint .",
     "test": "node --test"
   },
-  "eslintConfig": {
-    "env": {
-      "es6": true,
-      "node": true
-    },
-    "extends": "eslint:recommended"
-  },
   "devDependencies": {
-    "eslint": "^5.16.0",
-    "prettier": "^1.17.1"
+    "@eslint/js": "^10.0.1",
+    "eslint": "^10.4.1",
+    "globals": "^17.6.0",
+    "prettier": "^3.8.3"
   }
 }