Completed memento

Author: sohamkamani

README.md

@@ -1408,14 +1408,12 @@ First of all we have our memento object that will be able to hold the editor sta
 
 ```js
 class EditorMemento {
- protected content
- 
- constructor(string content) {
- this.content = content
+ constructor(content) {
+ this._content = content
  }
 
  getContent() {
- return this.content
+ return this._content
  }
 }
 ```
@@ -1424,37 +1422,39 @@ Then we have our editor i.e. originator that is going to use memento object
 
 ```js
 class Editor {
- protected content = ''
+ constructor(){
+ this._content = ''
+ }
 
- type(string words) {
- this.content = this.content . ' ' . words
+ type(words) {
+ this._content = this._content + ' ' + words
  }
 
  getContent() {
- return this.content
+ return this._content
  }
 
  save() {
- return new EditorMemento(this.content)
+ return new EditorMemento(this._content)
  }
 
- restore(EditorMemento memento) {
- this.content = memento.getContent()
+ restore(memento) {
+ this._content = memento.getContent()
  }
 }
 ```
 
 And then it can be used as 
 
 ```js
-editor = new Editor()
+const editor = new Editor()
 
 // Type some stuff
 editor.type('This is the first sentence.')
 editor.type('This is second.')
 
 // Save the state to restore to : This is the first sentence. This is second.
-saved = editor.save()
+const saved = editor.save()
 
 // Type some more
 editor.type('And this is third.')
@@ -1465,7 +1465,7 @@ console.log(editor.getContent())// This is the first sentence. This is second. A
 // Restoring to last saved state
 editor.restore(saved)
 
-editor.getContent() // This is the first sentence. This is second.
+console.log(editor.getContent()) // This is the first sentence. This is second.
 ```
 
 😎 Observer