chore: fix strict rule in getting-started lint config

getting-started/.eslintrc

@@ -4,14 +4,13 @@
   },
   "extends": "airbnb-base",
   "parserOptions": {
-    "sourceType": "module"
+    "sourceType": "script"
   },
   "rules": {
-    "strict": ["error", "global"],
     "no-use-before-define": ["error", "nofunc"],
     "no-console": "off",
     "import/no-unresolved": "off",
-    "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }]
-  },
-  "ignorePatterns": "**/*_pb.js"
+    "no-unused-vars": ["error"],
+    "strict": ["error", "global"]
+  }
 }

getting-started/example/app.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const PORT = process.env.PORT || '8080';
 
 const express = require('express');

getting-started/monitored-example/app.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const PORT = process.env.PORT || '8080';
 
 const express = require('express');

getting-started/monitored-example/monitoring.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const { MeterProvider } = require('@opentelemetry/metrics');
 const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 

getting-started/traced-example/app.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const PORT = process.env.PORT || '8080';
 
 const express = require('express');

getting-started/traced-example/tracing.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const { NodeTracerProvider } = require('@opentelemetry/node');
 const { SimpleSpanProcessor } = require('@opentelemetry/tracing');
 const { Resource } = require('@opentelemetry/resources');