cancel docs

docs/src/content/docs/reference/scripts/cancel.md

@@ -0,0 +1,12 @@
+---
+title: Cancel
+siderbar:
+  order: 15
+---
+
+It is not uncommon that upon executing a script, you may want to cancel the execution of the script. This can be done using the `cancel` function. The `cancel` function takes an optional `reason` argument and will immediately stop the execution of the script.
+
+```js
+if (!env.files.length)
+    cancel("Nothing to do")
+```