Added integration tests for TypeScript, React, and Vuejs

.eslintignore

@@ -1 +1,4 @@
-src/core/reference.js
+node_modules/
+test/integrations/**/node_modules/
+dist/**
+src/core/reference.js

.gitignore

@@ -19,4 +19,7 @@ coverage/
 lib/p5-test.js
 release/
 parameterData.json
-yarn.lock
+yarn.lock
+test/integrations/typescript/node_modules/
+test/integrations/react/node_modules/
+test/integrations/vuejs/node_modules/

Gruntfile.js

@@ -41,7 +41,8 @@ module.exports = grunt => {
     // Configure style consistency checking for this file, the source, and the tests.
     eslint: {
       options: {
-        format: 'unix'
+        format: 'unix',
+        quiet: true
       },
       build: {
         src: [
@@ -60,9 +61,12 @@ module.exports = grunt => {
       fix: {
         // src: is calculated below...
         options: {
-          rules: {
-            'no-undef': 0,
-            'no-unused-vars': 0
+          overrideConfig: {
+            ignorePatterns: ['node_modules/**/*'],
+            rules: {
+              'no-undef': 0,
+              'no-unused-vars': 0
+            }
           },
           fix: true
         }

build/rollup.config.mjs

@@ -0,0 +1,20 @@
+import { nodeResolve } from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import babel from '@rollup/plugin-babel';
+
+export default {
+  input: 'src/app.js', // or whatever path you found in Step 1
+  output: {
+    file: 'dist/app.js', // This is the generated ESM output
+    format: 'esm',
+    sourcemap: true
+  },
+  plugins: [
+    nodeResolve(),
+    commonjs(),
+    babel({
+      babelHelpers: 'bundled',
+      exclude: 'node_modules/**'
+    })
+  ]
+};