Update article.md

CyberMew · web-flow · commit 0de525c3b75f · 2019-02-14T10:37:57.000+08:00
Spacing.
diff --git a/1-js/07-object-oriented-programming/06-prototype-methods/article.md b/1-js/07-object-oriented-programming/06-prototype-methods/article.md
@@ -222,7 +222,7 @@ let rabbit = {
 
 for(let prop in rabbit) {
   let isOwn = rabbit.hasOwnProperty(prop);
-  alert(`${prop}: ${isOwn}`); // jumps:true, then eats:false
+  alert(`${prop}: ${isOwn}`); // jumps: true, then eats: false
 }
 ```
 Here we have the following inheritance chain: `rabbit`, then `animal`, then `Object.prototype` (because `animal` is a literal object `{...}`, so it's by default), and then `null` above it:

Original file line number	Diff line number	Diff line change
`@@ -222,7 +222,7 @@ let rabbit = {`
`222`	`222`
`223`	`223`	`for(let prop in rabbit) {`
`224`	`224`	`let isOwn = rabbit.hasOwnProperty(prop);`
`225`		- alert(`${prop}: ${isOwn}`); // jumps:true, then eats:false
	`225`	+ alert(`${prop}: ${isOwn}`); // jumps: true, then eats: false
`226`	`226`	`}`
`227`	`227`	```
`228`	`228`	Here we have the following inheritance chain: `rabbit`, then `animal`, then `Object.prototype` (because `animal` is a literal object `{...}`, so it's by default), and then `null` above it: