Aug 13, 2023 · Aug 27, 2024 · Aug 27, 2024 · Aug 27, 2024 · Aug 27, 2024
diff --git a/1-js/02-first-steps/08-operators/article.md b/1-js/02-first-steps/08-operators/article.md

 Here, the first expression `1 + 2` is evaluated and its result is thrown away. Then, `3 + 4` is evaluated and returned as the result.

 ```smart header="Comma has a very low precedence"
 ````smart header="Comma has a very low precedence"
 Please note that the comma operator has very low precedence, lower than `=`, so parentheses are important in the example above.

 Without them: `a = 1 + 2, 3 + 4` evaluates `+` first, summing the numbers into `a = 3, 7`, then the assignment operator `=` assigns `a = 3`, and the rest is ignored. It's like `(a = 1 + 2), 3 + 4`.
 Try running the following code (**we don't use `"use strict"` in the example below, otherwise we would get an error**):

 ```js run no-strict
 a = 1 + 2, 3 + 4;

 alert(a); // 3
 ```

 An unusual result, isn't it? Especially considering that the `,` operator should “evaluate each expression, but return the result of only the last one”.

 Without them: `a = 1 + 2, 3 + 4` evaluates `+` first, summing the numbers into `a = 3, 7`, then the assignment operator `=` assigns `a = 3`, and the rest is ignored. It's like `(a = 1 + 2), 3 + 4`.
 ````

 Why do we need an operator that throws away everything except the last expression?

 Sometimes, people use it in more complex constructs to put several actions in one line.
Original file line number	Diff line number	Diff line change
Expand Up		@@ -458,12 +458,22 @@ alert( a ); // 7 (the result of 3 + 4)

		Here, the first expression `1 + 2` is evaluated and its result is thrown away. Then, `3 + 4` is evaluated and returned as the result.

		```smart header="Comma has a very low precedence"
		````smart header="Comma has a very low precedence"
		Please note that the comma operator has very low precedence, lower than `=`, so parentheses are important in the example above.

		Without them: `a = 1 + 2, 3 + 4` evaluates `+` first, summing the numbers into `a = 3, 7`, then the assignment operator `=` assigns `a = 3`, and the rest is ignored. It's like `(a = 1 + 2), 3 + 4`.
		Try running the following code (we don't use `"use strict"` in the example below, otherwise we would get an error):
Copy link Contributor shallow-beachAug 27, 2024• edited Loading Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. simplify to use strict: Try running the following code:```js runlet a;a = 1 + 2, 3 + 4;alert(a); // 3``` Copy link Contributor shallow-beachAug 27, 2024 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. not totally sure why doesn't work with inline declaration tbh.`let` modifies operation order somehow i guess? could be part of explanation

		```js run no-strict
		a = 1 + 2, 3 + 4;

		alert(a); // 3
		```

		An unusual result, isn't it? Especially considering that the `,` operator should “evaluate each expression, but return the result of only the last one”.
Copy link Contributor shallow-beachAug 27, 2024• edited Loading Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. a little more direct: This is confusing because the`,` operator should “evaluate each expression, but return the result of only the last one”.

		Without them: `a = 1 + 2, 3 + 4` evaluates `+` first, summing the numbers into `a = 3, 7`, then the assignment operator `=` assigns `a = 3`, and the rest is ignored. It's like `(a = 1 + 2), 3 + 4`.
Copy link Contributor shallow-beachAug 27, 2024 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. maybe Without parentheses,`a = 1 + 2, 3 + 4` evaluates`+` first, summing the numbers into`a = 3, 7`, then the assignment operator`=` assigns`a = 3`, and the rest (`, 7`) is ignored. It's like`(a = 1 + 2), 3 + 4`. to emphasize the evaluation of`3+4`?
		````

		Why do we need an operator that throws away everything except the last expression?

		Sometimes, people use it in more complex constructs to put several actions in one line.
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