Assign new keys for JavaScript import and export (#2709)

Author: ddbeck

features/js-modules.yml

@@ -16,8 +16,11 @@ compat_features:
   - html.elements.script.nomodule
   - html.elements.script.type.module
   - javascript.statements.export
+  - javascript.statements.export.arbitrary_module_namespace_identifier_names
   - javascript.statements.export.default
   - javascript.statements.export.namespace
+  - javascript.statements.import.arbitrary_module_namespace_identifier_names
+  # TODO: move next key to json-modules and css-modules when https://github.com/web-platform-dx/web-features/issues/1173 is resolved
   - javascript.statements.import.import_attributes
   - javascript.statements.import.worklet_support
   - javascript.statements.import

features/js-modules.yml.dist

@@ -83,6 +83,20 @@ compat_features:
   #   safari_ios: "14.5"
   - javascript.statements.export.namespace
 
+  # baseline: high
+  # baseline_low_date: 2021-04-26
+  # baseline_high_date: 2023-10-26
+  # support:
+  #   chrome: "88"
+  #   chrome_android: "88"
+  #   edge: "88"
+  #   firefox: "87"
+  #   firefox_android: "87"
+  #   safari: "14.1"
+  #   safari_ios: "14.5"
+  - javascript.statements.export.arbitrary_module_namespace_identifier_names
+  - javascript.statements.import.arbitrary_module_namespace_identifier_names
+
   # baseline: low
   # baseline_low_date: 2023-03-27
   # support:

features/json-modules.yml

@@ -2,4 +2,7 @@ name: JSON import attributes
 description: 'Module `import … with { type: "json" }` statements load JSON data. Also known as JSON module scripts.'
 spec: https://html.spec.whatwg.org/multipage/webappapis.html#json-module-script
 group: json
+compat_features:
+  - javascript.statements.import.import_attributes.type_json
+  - javascript.grammar.trailing_commas.trailing_commas_in_dynamic_import
 # TODO: Tag javascript.statements.import when https://github.com/web-platform-dx/web-features/issues/1173 is resolved.

features/json-modules.yml.dist

@@ -10,4 +10,21 @@ status:
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "91"
+  #   chrome_android: "91"
+  #   edge: "91"
+  #   safari: "15"
+  #   safari_ios: "15"
+  - javascript.grammar.trailing_commas.trailing_commas_in_dynamic_import
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "123"
+  #   chrome_android: "123"
+  #   edge: "123"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
   - javascript.statements.import.import_attributes.type_json