minor

1-js/02-first-steps/15-function-expressions-arrows/article.md

@@ -22,7 +22,6 @@ let sayHi = function() {
 
 Here, the function is created and assigned to the variable explicitly, like any other value. No matter how the function is defined, it's just a value stored in the variable `sayHi`.
 
-
 The meaning of these code samples is the same: "create a function and put it into the variable `sayHi`".
 
 We can even print out that value using `alert`:
@@ -67,13 +66,15 @@ Here's what happens above in detail:
 Note that we could also have used a Function Expression to declare `sayHi`, in the first line:
 
 ```js
-let sayHi = function() { ... };
+let sayHi = function() {
+  alert( "Hello" );
+};
 
 let func = sayHi;
 // ...
 ```
 
-Everything would work the same. Even more obvious what's going on, right?
+Everything would work the same.
 
 
 ````smart header="Why is there a semicolon at the end?"
@@ -131,11 +132,11 @@ function showCancel() {
 ask("Do you agree?", showOk, showCancel);
 ```
 
-Before we explore how we can write it in a much shorter way, let's note that in the browser (and on the server-side in some cases) such functions are quite popular. The major difference between a real-life implementation and the example above is that real-life functions use more complex ways to interact with the user than a simple `confirm`. In the browser, such a function usually draws a nice-looking question window. But that's another story.
+In practice, such functions are quite useful. The major difference between a real-life `ask` and the example above is that real-life functions use more complex ways to interact with the user than a simple `confirm`. In the browser, such function usually draws a nice-looking question window. But that's another story.
 
 **The arguments `showOk` and `showCancel` of `ask` are called *callback functions* or just *callbacks*.**
 
-The idea is that we pass a function and expect it to be "called back" later if necessary. In our case, `showOk` becomes the callback for the "yes" answer, and `showCancel` for the "no" answer.
+The idea is that we pass a function and expect it to be "called back" later if necessary. In our case, `showOk` becomes the callback for "yes" answer, and `showCancel` for "no" answer.
 
 We can use Function Expressions to write the same function much shorter:
 
@@ -154,12 +155,10 @@ ask(
 */!*
 ```
 
-
 Here, functions are declared right inside the `ask(...)` call. They have no name, and so are called *anonymous*. Such functions are not accessible outside of `ask` (because they are not assigned to variables), but that's just what we want here.
 
 Such code appears in our scripts very naturally, it's in the spirit of JavaScript.
 
-
 ```smart header="A function is a value representing an \"action\""
 Regular values like strings or numbers represent the *data*.
 
@@ -465,7 +464,6 @@ For now, we can already use them for one-line actions and callbacks.
 - Function Declarations are processed before the code block is executed. They are visible everywhere in the block.
 - Function Expressions are created when the execution flow reaches them.
 
-
 In most cases when we need to declare a function, a Function Declaration is preferable, because it is visible prior to the declaration itself. That gives us more flexibility in code organization, and is usually more readable.
 
 So we should use a Function Expression only when a Function Declaration is not fit for the task. We've seen a couple of examples of that in this chapter, and will see more in the future.

1-js/02-first-steps/16-javascript-specials/article.md

@@ -248,8 +248,6 @@ We covered three ways to create a function in JavaScript:
     };
     ```
 
-    Function expressions can have a name, like `sum = function name(a, b)`, but that `name` is only visible inside that function.
-
 3. Arrow functions:
 
     ```js
@@ -274,13 +272,7 @@ We covered three ways to create a function in JavaScript:
 - Parameters can have default values: `function sum(a = 1, b = 2) {...}`.
 - Functions always return something. If there's no `return` statement, then the result is `undefined`.
 
-
+Details: see <info:function-basics>, <info:function-expressions-arrows>.
-| Function Declaration | Function Expression |
-|----------------------|---------------------|
-| visible in the whole code block/script | created when the execution reaches it |
-|    | can have a name, visible only inside the function |
-
-More: see <info:function-basics>, <info:function-expressions-arrows>.
 
 ## More to come
 

1-js/06-advanced-functions/06-function-object/article.md

@@ -282,7 +282,7 @@ let sayHi = function(who) {
 };
 ```
 
-The problem with that code is that the value of `sayHi` may change. The function may go to another variable, and the code will start to give errors:
+The problem with that code is that `sayHi` may change in the outer code. If the function gets assigned to another variable instead, the code will start to give errors:
 
 ```js run
 let sayHi = function(who) {