fix

.babelrc

@@ -1,6 +1,7 @@
 {
     "presets": ["@babel/env", ["@babel/typescript", { "jsxPragma": "h" }]],
     "plugins": [
+        "@babel/plugin-transform-nullish-coalescing-operator",
         [
             "@babel/transform-react-jsx",
             {

.github/workflows/ssr-es-check.yml → .github/workflows/es-check.yml

@@ -21,9 +21,3 @@ jobs:
 
       - name: Run es-check to check if our ie11 bundle is ES5 compatible
         run: npx [email protected] es5 dist/array.full.ie11.js
-
-      - name: Run es-check to check if our array bundle is ES6 compatible
-        run: npx [email protected] es6 dist/array.js
-
-      - name: Run es-check to check if our main bundle is ES6 compatible
-        run: npx [email protected] es6 dist/main.js

package.json

@@ -46,6 +46,7 @@
     "devDependencies": {
         "@babel/core": "7.18.9",
         "@babel/plugin-syntax-decorators": "^7.23.3",
+        "@babel/plugin-transform-nullish-coalescing-operator": "^7.25.8",
         "@babel/plugin-transform-react-jsx": "^7.23.4",
         "@babel/preset-env": "7.18.9",
         "@babel/preset-typescript": "^7.18.6",

rollup.config.js

@@ -15,6 +15,7 @@ const plugins = (supportIE11) => [
     babel({
         extensions: ['.js', '.jsx', '.ts', '.tsx'],
         babelHelpers: 'bundled',
+        plugins: ['@babel/plugin-transform-nullish-coalescing-operator'],
         presets: [
             [
                 '@babel/preset-env',
@@ -23,12 +24,18 @@ const plugins = (supportIE11) => [
                         ? '>0.5%, last 2 versions, Firefox ESR, not dead, IE 11'
                         : '>0.5%, last 2 versions, Firefox ESR, not dead',
                     useBuiltIns: supportIE11 ? 'usage' : false,
-                    corejs: '3.38',
+                    corejs: supportIE11 ? '3.38' : undefined,
                 },
             ],
         ],
     }),
-    terser({ toplevel: true }),
+    terser({
+        toplevel: true,
+        compress: {
+            // 5 is the default if unspecified
+            ecma: supportIE11 ? 5 : 6,
+        },
+    }),
 ]
 
 const entrypoints = fs.readdirSync('./src/entrypoints')

src/storage.ts

@@ -110,7 +110,9 @@ export const cookieStore: PersistentStore = {
                     return decodeURIComponent(c.substring(nameEQ.length, c.length))
                 }
             }
-        } catch {}
+        } catch {
+            // noop
+        }
         return null
     },
 
@@ -159,17 +161,16 @@ export const cookieStore: PersistentStore = {
             }
 
             document.cookie = new_cookie_val
-            return new_cookie_val
         } catch {
-            return
+            // no-op
         }
     },
 
     remove: function (name, cross_subdomain) {
         try {
             cookieStore.set(name, '', -1, cross_subdomain)
         } catch {
-            return
+            // no-op
         }
     },
 }
@@ -258,7 +259,9 @@ export const localPlusCookieStore: PersistentStore = {
             try {
                 // See if there's a cookie stored with data.
                 cookieProperties = cookieStore.parse(name) || {}
-            } catch {}
+            } catch {
+                // noop
+            }
             const value = extend(cookieProperties, JSON.parse(localStore.get(name) || '{}'))
             localStore.set(name, value)
             return value