build: Apply strict null checks

Author: TomasEng

.github/workflows/frontend-unit-tests.yml

@@ -63,6 +63,9 @@ jobs:
       - name: 'Doing the typecheck'
         run: yarn typecheck
 
+      - name: 'Strict null checks'
+        run: yarn strict-null-checks
+
       - name: 'Running Eslint'
         run: yarn lint --cache
 

frontend/tsconfig-strict.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "strictNullChecks": true
+  },
+  "include": ["libs/studio-icons"]
+}

package.json

@@ -94,6 +94,7 @@
     "test": "jest --maxWorkers=50% --config=frontend/jest.config.js",
     "test:ci": "jest --ci --coverage --max-workers=2 --cacheDirectory=$(yarn config get cacheFolder) --config=frontend/jest.config.js",
     "typecheck": "tsc --noEmit -p frontend",
+    "strict-null-checks": "tsc --noEmit -p frontend/tsconfig-strict.json",
     "playwright:test:all": "yarn workspace playwright-studio test:all",
     "playwright:test:ui": "yarn workspace playwright-studio test:ui",
     "resourceadm:playwright:test:ui": "yarn workspace playwright-resourceadm resourceadm:test:ui",