Merge branch 'master' of https://github.com/iliakan/javascript-tutorial-en

1-js/03-code-quality/05-testing-mocha/article.md

@@ -159,8 +159,8 @@ We can select one of two ways to organize the test here:
         assert.equal(pow(2, 3), 8);
       });
 
-      it("3 raised to power 3 is 27", function() {
+      it("3 raised to power 4 is 81", function() {
-        assert.equal(pow(3, 3), 27);
+        assert.equal(pow(3, 4), 81);
       });
 
     });
@@ -182,7 +182,7 @@ The result:
 
 [iframe height=250 src="pow-2" edit border="1"]
 
-As we could expect, the second test failed. Sure, our function always returns `8`, while the `assert` expects `27`.
+As we could expect, the second test failed. Sure, our function always returns `8`, while the `assert` expects `81`.
 
 ## Improving the implementation
 

1-js/05-data-types/02-number/article.md

@@ -413,7 +413,7 @@ There are more functions and constants in `Math` object, including trigonometry,
 To write numbers with many zeroes:
 
 - Append `"e"` with the zeroes count to the number. Like: `123e6` is the same as `123` with 6 zeroes `123000000`.
-- A negative number after `"e"` causes the number to be divided by 1 with given zeroes. E.g. `123e-6` means `0.000123` (`123` millionth).
+- A negative number after `"e"` causes the number to be divided by 1 with given zeroes. E.g. `123e-6` means `0.000123` (`123` millionths).
 
 For different numeral systems:
 

1-js/09-classes/02-class-inheritance/article.md

@@ -499,7 +499,7 @@ In the example below a non-method syntax is used for comparison. `[[HomeObject]]
 
 ```js run
 let animal = {
-  eat: function() { // intentially writing like this instead of eat() {...
+  eat: function() { // intentionally writing like this instead of eat() {...
     // ...
   }
 };

1-js/09-classes/04-private-protected-properties-methods/article.md

@@ -279,7 +279,7 @@ With private fields that's impossible: `this['#name']` doesn't work. That's a sy
 
 ## Summary
 
-In terms of OOP, delimiting of the internal interface from the external one is called [encapsulation]("https://en.wikipedia.org/wiki/Encapsulation_(computer_programming)").
+In terms of OOP, delimiting of the internal interface from the external one is called [encapsulation](https://en.wikipedia.org/wiki/Encapsulation_(computer_programming)).
 
 It gives the following benefits:
 

2-ui/3-event-details/3-mousemove-mouseover-mouseout-mouseenter-mouseleave/article.md

@@ -125,7 +125,7 @@ If there are some actions upon leaving the parent element, e.g. an animation run
 
 To avoid it, we can check `relatedTarget` in the handler and, if the mouse is still inside the element, then ignore such event.
 
-Alternatively we can use other events: `mouseenter` и `mouseleave`, that we'll be covering now, as they don't have such problems.
+Alternatively we can use other events: `mouseenter` and `mouseleave`, that we'll be covering now, as they don't have such problems.
 
 ## Events mouseenter and mouseleave
 

2-ui/99-ui-misc/03-event-loop/article.md

@@ -335,5 +335,5 @@ That's a way to run code in another, parallel thread.
 
 Web Workers can exchange messages with the main process, but they have their own variables, and their own event loop.
 
-Web Workers do not have access to DOM, so they are useful, mainly, for calculations, to use multiplle CPU cores simultaneously.
+Web Workers do not have access to DOM, so they are useful, mainly, for calculations, to use multiple CPU cores simultaneously.
 ```

9-regular-expressions/03-regexp-unicode/article.md

@@ -34,7 +34,7 @@ Unlike strings, regular expressions have flag `pattern:u` that fixes such proble
 ## Unicode properties \p{...}
 
 ```warn header="Not supported in Firefox and Edge"
-Despite being a part of the standard since 2018, unicode proeprties are not supported in Firefox ([bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1361876)) and Edge ([bug](https://github.com/Microsoft/ChakraCore/issues/2969)).
+Despite being a part of the standard since 2018, unicode properties are not supported in Firefox ([bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1361876)) and Edge ([bug](https://github.com/Microsoft/ChakraCore/issues/2969)).
 
 There's [XRegExp](http://xregexp.com) library that provides "extended" regular expressions with cross-browser support for unicode properties.
 ```