Merge branch 'master' into fix/operator-precedence

Author: iliakan

1-js/04-object-basics/06-constructor-new/article.md

@@ -1,6 +1,6 @@
 # Constructor, operator "new"
 
-The regular `{...}` syntax allows to create one object. But often we need to create many similar objects, like multiple users or menu items and so on.
+The regular `{...}` syntax allows us to create one object. But often we need to create many similar objects, like multiple users or menu items and so on.
 
 That can be done using constructor functions and the `"new"` operator.
 

1-js/05-data-types/06-iterable/article.md

@@ -31,7 +31,7 @@ To make the `range` object iterable (and thus let `for..of` work) we need to add
 1. When `for..of` starts, it calls that method once (or errors if not found). The method must return an *iterator* -- an object with the method `next`.
 2. Onward, `for..of` works *only with that returned object*.
 3. When `for..of` wants the next value, it calls `next()` on that object.
-4. The result of `next()` must have the form `{done: Boolean, value: any}`, where `done=true`  means that the iteration is finished, otherwise `value` is the next value.
+4. The result of `next()` must have the form `{done: Boolean, value: any}`, where `done=true` means that the loop is finished, otherwise `value` is the next value.
 
 Here's the full implementation for `range` with remarks:
 
@@ -45,10 +45,10 @@ let range = {
 range[Symbol.iterator] = function() {
 
   // ...it returns the iterator object:
-  // 2. Onward, for..of works only with this iterator, asking it for next values
+  // 2. Onward, for..of works only with the iterator object below, asking it for next values
   return {
     current: this.from,
-    last: this.to,      
+    last: this.to,
 
     // 3. next() is called on each iteration by the for..of loop
     next() {
@@ -270,7 +270,7 @@ for (let char of str) {
 alert(chars);
 ```
 
-...But it is shorter.    
+...But it is shorter.
 
 We can even build surrogate-aware `slice` on it:
 

1-js/05-data-types/10-destructuring-assignment/destructuring-complex.svg

@@ -318,7 +318,7 @@ for (let key in user) {
 
 ...But that does not copy flags. So if we want a "better" clone then `Object.defineProperties` is preferred.
 
-Another difference is that `for..in` ignores symbolic properties, but `Object.getOwnPropertyDescriptors` returns *all* property descriptors including symbolic ones.
+Another difference is that `for..in` ignores symbolic and non-enumerable properties, but `Object.getOwnPropertyDescriptors` returns *all* property descriptors including symbolic and non-enumerable ones.
 
 ## Sealing an object globally
 

1-js/06-advanced-functions/01-recursion/recursive-salaries.svg

@@ -307,4 +307,4 @@ Also, the functions named `step*` are all of single use, they are created only t
 
 We'd like to have something better.
 
-Luckily, there are other ways to avoid such pyramids. One of the best ways is to use "promises," described in the next chapter.
+Luckily, there are other ways to avoid such pyramids. One of the best ways is to use "promises", described in the next chapter.