Update 2014-01-19-the-usage-of-this-in-javascript.md

zombiezlk · Jul 22, 2016 · 54653c1 · 54653c1
1 parent 05708a5
commit 54653c1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/_posts/2014-01-19-the-usage-of-this-in-javascript.md b/_posts/2014-01-19-the-usage-of-this-in-javascript.md
@@ -48,7 +48,7 @@ category: tech
 		alert(this.myName);
 	}
 	foo.prototype.bar = function(){
-		self = this;   //将bar中的this的值存在变量self中，这样self所指向的对象就跟bar中的this一样了。
+		var self = this;   //将bar中的this的值存在变量self中，这样self所指向的对象就跟bar中的this一样了。
 		setTimeout(self.sayHello, 1000);
 	}
 	var f = new foo;