Tigon32 · Nov 10, 2026 · Nov 10, 2026 · Nov 10, 2026 · Nov 10, 2026 · Nov 10, 2026
diff --git a/.github/workflows/integration-ci.yml b/.github/workflows/integration-ci.yml
@@ -30,3 +30,7 @@ jobs:
         run: cargo build --release --target wasm32-unknown-unknown --example quad
       - name: JavaScript syntax check
         run: node --check js/gl.js
+      - name: Install JavaScript lint tools
+        run: npm install --no-audit --no-fund
+      - name: ESLint browser bridge
+        run: npm run lint:js
diff --git a/eslint.config.mjs b/eslint.config.mjs
@@ -0,0 +1,44 @@
+/** ESLint flat configuration for Miniquad's browser-facing JavaScript.
+ * Node syntax checking is also retained in CI.
+ * Keep the initial rules focused on correctness, not stylistic rewrites.
+ */
+export default [
+  {
+    files: ["js/**/*.js"],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "script",
+      globals: {
+        window: "readonly",
+        document: "readonly",
+        navigator: "readonly",
+        console: "readonly",
+        performance: "readonly",
+        alert: "readonly",
+        requestAnimationFrame: "readonly",
+        cancelAnimationFrame: "readonly",
+        setTimeout: "readonly",
+        clearTimeout: "readonly",
+        fetch: "readonly",
+        Image: "readonly",
+        XMLHttpRequest: "readonly",
+        WebAssembly: "readonly",
+        TextDecoder: "readonly",
+        TextEncoder: "readonly",
+        atob: "readonly",
+        btoa: "readonly"
+      }
+    },
+    rules: {
+      "no-undef": "error",
+      "no-dupe-args": "error",
+      "no-duplicate-case": "error",
+      "no-unreachable": "error",
+      "no-unsafe-finally": "error",
+      "no-invalid-regexp": "error",
+      "no-fallthrough": "error",
+      "no-constant-condition": ["error", { checkLoops: false }],
+      "no-unused-vars": "off"
+    }
+  }
+];
diff --git a/js/gl.js b/js/gl.js
@@ -324,7 +324,7 @@ function _webglGet(name_, p, type) {
             if (type != 'EM_FUNC_SIG_PARAM_I' && type != 'EM_FUNC_SIG_PARAM_I64') {
                 GL.recordError(0x500); // GL_INVALID_ENUM
 
-                err('GL_INVALID_ENUM in glGet' + type + 'v(GL_SHADER_BINARY_FORMATS): Invalid parameter type!');
+                console.error('GL_INVALID_ENUM in glGet' + type + 'v(GL_SHADER_BINARY_FORMATS): Invalid parameter type!');
             }
             return; // Do not write anything to the out pointer, since no binary formats are supported.
         case 0x87FE: // GL_NUM_PROGRAM_BINARY_FORMATS
@@ -409,7 +409,7 @@ function _webglGet(name_, p, type) {
     }
 
     switch (type) {
-        case 'EM_FUNC_SIG_PARAM_I64': getArray(p, Int32Array, 1)[0] = ret;
+        case 'EM_FUNC_SIG_PARAM_I64':
         case 'EM_FUNC_SIG_PARAM_I': getArray(p, Int32Array, 1)[0] = ret; break;
         case 'EM_FUNC_SIG_PARAM_F': getArray(p, Float32Array, 1)[0] = ret; break;
         case 'EM_FUNC_SIG_PARAM_B': getArray(p, Int8Array, 1)[0] = ret ? 1 : 0; break;
@@ -1151,7 +1151,7 @@ var importObject = {
         },
         glDeleteQueries: function (n, ids) {
             for (var i = 0; i < n; i++) {
-                var id = getArray(textures + i * 4, Uint32Array, 1)[0];
+                var id = getArray(ids + i * 4, Uint32Array, 1)[0];
                 var query = GL.timerQueries[id];
                 if (!query) {
                     continue;
@@ -1247,16 +1247,11 @@ var importObject = {
             canvas. (event) {
                 var sapp_key_code = into_sapp_keycode(event.code);
                 switch (sapp_key_code) {
-                    //  space, arrows - prevent scrolling of the page
+                    // Space, arrows, F1-F10, backspace, tab, quote and slash:
+                    // prevent browser scrolling and navigation when the canvas has focus.
                     case 32: case 262: case 263: case 264: case 265:
-                    // F1-F10
                     case 290: case 291: case 292: case 293: case 294: case 295: case 296: case 297: case 298: case 299:
-                    // backspace is Back on Firefox/Windows
-                    case 259:
-                    // tab - for UI
-                    case 258:
-                    // quote and slash are Quick Find on Firefox
-                    case 39: case 47:
+                    case 259: case 258: case 39: case 47:
                         event.preventDefault();
                         break;
                 }

diff --git a/package.json b/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "miniquad-js-tooling",
+  "private": true,
+  "description": "Development-only linting for Miniquad's browser bridge",
+  "scripts": {
+    "lint:js": "eslint js/gl.js"
+  },
+  "devDependencies": {
+    "eslint": "9.39.1"
+  }
+}