minor

1-js/02-first-steps/12-while-for/article.md

@@ -309,8 +309,7 @@ for (let i = 0; i < 3; i++) {
 
     let input = prompt(`Value at coords (${i},${j})`, '');
 
-    // what if I want to exit from here to Done (below)?
+    // what if we want to exit from here to Done (below)?
-
   }
 }
 

1-js/04-object-basics/03-symbol/article.md

@@ -3,11 +3,11 @@
 
 By specification, object property keys may be either of string type, or of symbol type. Not numbers, not booleans, only strings or symbols, these two types.
 
-Till now we've only seen strings. Now let's see the advantages that symbols can give us.
+Till now we've been using only strings. Now let's see the benefits that symbols can give us.
 
 ## Symbols
 
-"Symbol" value represents a unique identifier.
+A "symbol" represents a unique identifier.
 
 A value of this type can be created using `Symbol()`:
 

1-js/09-classes/07-mixins/article.md

@@ -2,13 +2,13 @@
 
 In JavaScript we can only inherit from a single object. There can be only one `[[Prototype]]` for an object. And a class may extend only one other class.
 
-But sometimes that feels limiting. For instance, I have a class `StreetSweeper` and a class `Bicycle`, and want to make their mix: a `StreetSweepingBicycle`.
+But sometimes that feels limiting. For instance, we have a class `StreetSweeper` and a class `Bicycle`, and want to make their mix: a `StreetSweepingBicycle`.
 
 Or we have a class `User` and a class `EventEmitter` that implements event generation, and we'd like to add the functionality of `EventEmitter` to `User`, so that our users can emit events.
 
 There's a concept that can help here, called "mixins".
 
-As defined in Wikipedia, a [mixin](https://en.wikipedia.org/wiki/Mixin) is a class that contains methods for use by other classes without having to be the parent class of those other classes.
+As defined in Wikipedia, a [mixin](https://en.wikipedia.org/wiki/Mixin) is a class containing methods that can be used by other classes without a need to inherit from it.
 
 In other words, a *mixin* provides methods that implement a certain behavior, but we do not use it alone, we use it to add the behavior to other classes.
 

2-ui/3-event-details/4-mouse-drag-and-drop/article.md

@@ -1,6 +1,6 @@
 # Drag'n'Drop with mouse events
 
-Drag'n'Drop is a great interface solution. Taking something, dragging and dropping is a clear and simple way to do many things, from copying and moving (see file managers) to ordering (drop into cart).
+Drag'n'Drop is a great interface solution. Taking something, dragging and dropping is a clear and simple way to do many things, from copying and moving documents (as in file managers) to ordering (drop into cart).
 
 In the modern HTML standard there's a [section about Drag and Drop](https://html.spec.whatwg.org/multipage/interaction.html#dnd) with special events such as `dragstart`, `dragend` and so on.