Jun 3, 2025
diff --git a/1-js/02-first-steps/17-arrow-functions-basics/article.md b/1-js/02-first-steps/17-arrow-functions-basics/article.md
 let func = (arg1, arg2, ..., argN) => expression;
 ```

 This creates a function `func`that accepts arguments `arg1..argN`, then evaluates the `expression` on the right side with their use and returns its result.
 This creates a function `func`with parameters `arg1..argN`, then evaluates the `expression` on the right side with their use and returns its result.

 In other words, it's the shorter version of:

 alert( sum(1, 2) ); // 3
 ```

 As you can see, `(a, b) => a + b` means a function thataccepts twoarguments named `a` and `b`. Upon the execution, it evaluates the expression `a + b` and returns the result.
 As you can see, `(a, b) => a + b` means a function thatdefines twoparameters named `a` and `b`. Upon the execution, it evaluates the expression `a + b` and returns the result.

 - If we have only oneargument, then parentheses aroundparameters can be omitted, making that even shorter.
 - If we have only oneparameter, then parentheses aroundit can be omitted, making that even shorter.

    For example:

    alert( double(3) ); // 6
    ```

 - If there are noarguments, parentheses are empty, but they must be present:
 - If there are noparameters, parentheses are empty, but they must be present:

    ```js run
    let sayHi = () => alert("Hello!");
Original file line number	Diff line number	Diff line change
Expand Up		@@ -8,7 +8,7 @@ It's called "arrow functions", because it looks like this:
		let func = (arg1, arg2, ..., argN) => expression;
		```

		This creates a function `func`that accepts arguments `arg1..argN`, then evaluates the `expression` on the right side with their use and returns its result.
		This creates a function `func`with parameters `arg1..argN`, then evaluates the `expression` on the right side with their use and returns its result.

		In other words, it's the shorter version of:

Expand All		@@ -33,9 +33,9 @@ let sum = function(a, b) {
		alert( sum(1, 2) ); // 3
		```

		As you can see, `(a, b) => a + b` means a function thataccepts twoarguments named `a` and `b`. Upon the execution, it evaluates the expression `a + b` and returns the result.
		As you can see, `(a, b) => a + b` means a function thatdefines twoparameters named `a` and `b`. Upon the execution, it evaluates the expression `a + b` and returns the result.

		- If we have only oneargument, then parentheses aroundparameters can be omitted, making that even shorter.
		- If we have only oneparameter, then parentheses aroundit can be omitted, making that even shorter.

		For example:

Expand All		@@ -48,7 +48,7 @@ As you can see, `(a, b) => a + b` means a function that accepts two arguments na
		alert( double(3) ); // 6
		```

		- If there are noarguments, parentheses are empty, but they must be present:
		- If there are noparameters, parentheses are empty, but they must be present:

		```js run
		let sayHi = () => alert("Hello!");
Expand Down