Updated way to check for main in ESM

rodyvansambeek · Mar 21, 2024 · f9111d5 · f9111d5
1 parent 3473425
commit f9111d5
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Showing 4 changed files with 15 additions and 2 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -35,5 +35,8 @@
     "jest": "^29.7.0",
     "ts-jest": "^29.1.2",
     "typescript": "^5.4.2"
+  },
+  "dependencies": {
+    "es-main": "^1.3.0"
   }
 }
diff --git a/src/index.ts b/src/index.ts
@@ -1,5 +1,7 @@
 #!/usr/bin/env node
 
+import esMain from "es-main";
+
 const getCurrentISOWeek = (date: Date) => {
   const dayOfWeek = date.getDay();
   const currentDay = date.getDate();
@@ -18,6 +20,6 @@ const getCurrentISOWeek = (date: Date) => {
 
 export default getCurrentISOWeek;
 
-if (require.main === module) {
+if (esMain(import.meta)) {
   console.log(getCurrentISOWeek(new Date()));
 }
diff --git a/tsconfig.json b/tsconfig.json
@@ -25,7 +25,7 @@
     // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
 
     /* Modules */
-    "module": "CommonJS",                                /* Specify what module code is generated. */
+    "module": "ESNext",                                /* Specify what module code is generated. */
     "rootDir": "./src",                                  /* Specify the root folder within your source files. */
     "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
     // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */