Added test that esm module could be imported (via import statement) i…

…n nodejs context

It's the case to handle that the library might be used with SSR

.circleci/config.yml

@@ -144,6 +144,18 @@ jobs:
       - checkout-with-deps
       - run: npm run lint:md
 
+  usable-in-nodejs:
+    executor: node16-executor
+    steps:
+      - checkout-with-deps
+      - attach_workspace:
+          at: ./
+      - run: npm link lightweight-charts
+      - run: npm run prepare-package-json-for-release
+      - run:
+          name: "Check CJS could be imported in NodeJS"
+          command: node -e "import 'lightweight-charts'"  --input-type=module
+
   unittests:
     executor: node16-executor
     environment:
@@ -303,6 +315,10 @@ workflows:
           filters: *default-filters
           requires:
             - build
+      - usable-in-nodejs:
+          filters: *default-filters
+          requires:
+            - build
       - unittests:
           filters: *default-filters
           requires:

package.json

@@ -116,7 +116,8 @@
     "build:watch": "npm-run-all tsc -p tsc-watch rollup-watch",
     "build:prod": "cross-env NODE_ENV=production npm run build",
     "build:release": "cross-env BUILD_TAG=release npm run build:prod",
-    "prepare-release": "npm-run-all clean build:release && node ./scripts/clean-package-json.cjs",
+    "prepare-release": "npm-run-all clean build:release && npm run prepare-package-json-for-release",
+    "prepare-package-json-for-release": "node ./scripts/clean-package-json.cjs",
     "size-limit": "size-limit",
     "verify": "npm-run-all clean -p lint check-markdown-links build:prod -p check-dts-docs tsc-verify test size-limit",
     "test": "mocha tests/unittests/**/*.spec.ts"