update solve problem to Allow One Function Call

Author: nutkiattisak

Diff for: 2666. allow-one-function-call/index.js

@@ -0,0 +1,8 @@
+const once = (fn) =>{
+    let called = false
+    return (...args) => {
+        if(called) return
+        called = true
+        return fn(...args)
+    }
+}

Diff for: README.md

@@ -13,10 +13,10 @@
 | Array Reduce Transformation                  |    ✅     |
 | Function Composition                         |    ✅     |
 | Return Length of Arguments Passed            |    ✅     |
-| Allow One Function Call                      |           |
+| Allow One Function Call                      |    ✅     |
 | Memoize                                      |           |
 | Add Two Promises                             |           |
-| Sleep                                        |           |
+| Sleep                                        |    ✅     |
 | Timeout Cancellation                         |           |
 | Interval Cancellation                        |           |
 | Promise Time Limit                           |           |