tklee1975 · July 11, 2021 17:08
diff --git a/no-this.js b/no-this.js
 function foo() {
     var a = 2;
     function bar() {
         console.log(a);
     }

     bar();
 }
 foo()
diff --git a/this.js b/this.js
 function foo() {
     var a = 2;
     function bar() {
         console.log(this.a);
     }

     this.bar();
 }
 foo()
	function foo() {
	var a = 2;
	function bar() {
	console.log(a);
	}

	bar();
	}
	foo()