if anybody is familiar with destructuring an array’s challenge, the moderators of the forum if they can help, can you please explain this little paragraph in the challenge that I can not put my head around:
“the rest element only works correctly as the last variable in the list. As in, you can not use the rest parameter to CATCH A SUBARRAY THAT LEAVES OUT THE LAST ELEMENT OF THE ORIGINAL ARRAY” end of the quote.
i can not imagine what this means, I tried to experiment on the rest parameter with arrays and nested ones too, the rest parameter works no matter what I leave in the original array, what do they mean by that upper case phrase I highlighted up in the quote(again it’s from the curriculum challenges of es6 section)?
link to the challenge:https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-with-the-rest-parameter-to-reassign-array-elements
thank you.
Do you have a duplicate account:
https://forum.freecodecamp.org/t/the-rest-parameter-and-destructuring-an-array/487294
yes it’s me sorry I just needed an answer before I move on to the next challenge, that was my work account.
sorry.
i wake up and go early to work, so i used my work account, to keep up with the studying and all.
Multiple accounts confuses the forum software. The forum just marked your reply with the @markson account as spam, for example. I went ahead and closed that duplicate account so the forum isn’t as confused.
On to your question, that sentence is saying that
let [a, b, ...arr] = [1, 2, 3, 4, 5, 6, 7];
is fine, but you can’t do
let [a, b, ...arr, c] = [1, 2, 3, 4, 5, 6, 7];
because this would be invalid syntax that is not supported by the rest syntax.
perfect, thanx and sorry for the confusion.
No worries. Glad the explanation helped!
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