Make improvements to grammar

Author: vejol

src/content/1/en/part1c.md

@@ -60,11 +60,11 @@ const Hello = (props) => {
 }
 ```
 
-The logic for guessing the year of birth is separated into a function of its own that is called when the component is rendered.
+The logic for guessing the year of birth is encapsulated within a function of its own, which is invoked when the component is rendered.
 
-The person's age does not have to be passed as a parameter to the function, since it can directly access all props that are passed to the component.
+The person's age does not need to be explicitly passed as a parameter to this function because the function can directly access all the props provided to the component.
 
-If we examine our current code closely, we'll notice that the helper function is defined inside of another function that defines the behavior of our component. In Java programming, defining a function inside another one is complex and cumbersome, so not all that common. In JavaScript, however, defining functions within functions is a commonly-used technique.
+If we examine the current code, we notice that the helper function is defined within another function that determines the component's behavior. In Java programming, defining a function within another function can be complex and is uncommon. However, in JavaScript, defining functions within functions is a common and efficient practice.
 
 ### Destructuring
 
@@ -176,7 +176,7 @@ const Hello = ({ name, age }) => {
 
 ### Page re-rendering
 
-So far all of our applications have been such that their appearance remains the same after the initial rendering. What if we wanted to create a counter where the value increased as a function of time or at the click of a button?
+Up to this point, our applications have been static — their appearance remains unchanged after the initial rendering. But what if we wanted to create a counter that increases in value, either over time or when a button is clicked?
 
 Let's start with the following. File <i>App.jsx</i> becomes: