Add getCmdArgs

snippets/getCmdArgs.md

@@ -0,0 +1,20 @@
+---
+title: Command-line arguments
+tags: node
+expertise: beginner
+firstSeen: 2022-04-26T05:00:00-04:00
+---
+
+Gets the command-line arguments passed to a Node.js script.
+
+- Use `process.argv` to get an array of all command-line arguments.
+- Use `Array.prototype.slice()` to remove the first two elements (path of the Node.js executable and the file being executed).
+
+```js
+const getCmdArgs = () => process.argv.slice(2);
+```
+
+```js
+// node my-script.js --name=John --age=30
+getCmdArgs(); // ['--name=John', '--age=30']
+```