cross ref structkeyexists with operators

Author: zspitzer

docs/03.reference/01.functions/structkeyexists/function.md

@@ -13,4 +13,36 @@ Determines whether a specific key is present in a structure.
 
 In CFML, by default, this will return `false` for any keys with a `null` value, however, if Full Null Support is enabled, it will return `true`.
 
-[[null_support]]
+[[null_support]]
+
+## See Also: Elvis and Safe Navigation Operators
+
+For many common use cases, consider using these more concise alternatives:
+
+- **Elvis operator (`?:`)** - Returns a default value if the left side is null or undefined:
+
+  ```lucee
+  // Instead of:
+  if ( structKeyExists( args, "name" ) ) {
+      result = args.name;
+  } else {
+      result = "default";
+  }
+  // Use:
+  result = args.name ?: "default";
+  ```
+
+- **Safe navigation operator (`?.`)** - Safely traverse nested properties, combine with elvis for a default value:
+
+  ```lucee
+  // Instead of:
+  if ( structKeyExists( user, "address" ) && structKeyExists( user.address, "city" ) ) {
+      city = user.address.city;
+  } else {
+      city = "Unknown";
+  }
+  // Use:
+  city = user?.address?.city ?: "Unknown";
+  ```
+
+  [[operators]]

docs/04.guides/11.developing-with-lucee-server/03.operators/page.md

@@ -4,6 +4,7 @@ id: operators
 related:
 - function-max
 - function-min
+- function-structkeyexists
 categories:
 - core
 - math