Typos & spacing

1-js/04-object-basics/01-object/article.md

@@ -9,7 +9,7 @@ In contrast, objects are used to store keyed collections of various data and mor
 
 An object can be created with figure brackets `{…}` with an optional list of *properties*. A property is a "key: value" pair, where `key` is a string (also called a "property name"), and `value` can be anything.
 
-We can imagine an object as a cabinet with signed files. Every piece of data is stored in it's file by the key. It's easy to find a file by it's name or add/remove a file.
+We can imagine an object as a cabinet with signed files. Every piece of data is stored in its file by the key. It's easy to find a file by its name or add/remove a file.
 
 ![](object.png)
 
@@ -224,7 +224,7 @@ alert(obj.__proto__); // [object Object], didn't work as intended
 
 As we see from the code, the assignment to a primitive `5` is ignored.
 
-That can be come a source of bugs and even vulnerabilies if we intent to store arbitrary key-value pairs in an object, and allow a visitor to specify the keys. In that case the visitor may choose "__proto__" as the key, and the assignment logic will be ruined (as shown above).
+That can become a source of bugs and even vulnerabilities if we intend to store arbitrary key-value pairs in an object, and allow a visitor to specify the keys. In that case, the visitor may choose "__proto__" as the key, and the assignment logic will be ruined (as shown above).
 
 There's another data structure [Map](info:map-set-weakmap-weakset), that we'll learn in the chapter <info:map-set-weakmap-weakset>, which supports arbitrary keys. Also there's a way to make objects treat `__proto__` as a regular property, but first we need to know more about objects to understand it.
 ````
@@ -700,7 +700,7 @@ user.sizes.width++;       // change a property from one place
 alert(clone.sizes.width); // 51, see the result from the other one
 ```
 
-To fix that, we should use the cloning loop that examines each value of `user[key]` and, if it's an object, then replicate it's structure as well. That is called a "deep cloning".
+To fix that, we should use the cloning loop that examines each value of `user[key]` and, if it's an object, then replicate its structure as well. That is called a "deep cloning".
 
 There's a standard algorithm for deep cloning that handles the case above and more complex cases, called the [Structured cloning algorithm](https://w3c.github.io/html/infrastructure.html#internal-structured-cloning-algorithm). In order not to reinvent the wheel, we can use a working implementation of it from the JavaScript library [lodash](https://lodash.com), the method is called [_.cloneDeep(obj)](https://lodash.com/docs#cloneDeep).