update post: Closure and this - How are variables resolved within functions?

2026-08-18 13:42:04 +00:00 · 2020-08-03 04:30:13 +05:30
parent 82d2c85888
commit 0cc619cc3a
1 changed files with 6 additions and 3 deletions
@@ -176,7 +176,8 @@ It will finally reach global scope, which always provides a `this` value (global
 ### What does this explain?


-1. Arrow functions don't have their own `this` value. It is taken from the closest `this`-providing scope.
+A. Arrow functions don't have their own `this` value. It is taken from the closest `this`-providing scope.
+
 ```js
 function outer() {
  const inner = () => {
@@ -192,7 +193,8 @@ outer.call(obj);
 ```
 Same logic also applies for nested arrow functions.

-2. Block scopes also don't have their own `this` value.
+B. Block scopes also don't have their own `this` value.
+
 ```js
 {
  // just prints global object
@@ -200,7 +202,8 @@ Same logic also applies for nested arrow functions.
 }
 ```

-3. In modules, top-level `this` is `undefined`.
+C. In modules, top-level `this` is `undefined`.
+
 ```js
 // Save as file.mjs and run in node.
 // That will run it as a module.