Return an array as a string JavaScript

Question

I want return an array as a string in my function.
Example:

return [[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]]

should be returned as "[[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]]" which is a string. I don't want to use .join() because it removes the [] brackets.

I'm voting to close this question as off-topic because it is too general to the language of programming; specifically JavaScript. Flooding SO with simple questions — that are clearly defined in the language or showcased in most books — should be avoided. — vol7ron
– vol7ron, Commented Aug 6, 2017 at 13:06
Do you mean SO is for experienced programmers only? From Where should I get help? Please be nice. — Hoslack
– Hoslack, Commented Aug 6, 2017 at 13:35
Not at all. There really is no dumb question, but SO should expect someone to make an effort to learn a concept via some resource / material and come here with questions when they can't grasp what it is they are learning or attempting to do. The Q&A forum isn't intended to replace existing documentation, but more to support the learning process. — vol7ron
– vol7ron, Commented Aug 6, 2017 at 13:40
I have heard you but please look at my question and try to answer from the documentation. All they gave me was .join() as I have indicated above. I wish you would be helping solving problems instead of closing them simply because they aren't a problem to you. — Hoslack
– Hoslack, Commented Aug 6, 2017 at 13:43
@NisargShah Meta is unnecessary. When I voted to close, I chose for "other", which required a reason. The reason posts as a comment here. The OP had follow-up, which I addressed. I think it's run its course. It wasn't personal and I don't think he took it that way. Simple questions are discouraged for many reasons; e.g., point-farming, landing page inflation, etc. Whether SO wants to be more proactive is up to the community and admins. My vote is only one (and it'd take 5 to close) - if 4 others don't feel the same, everything is as it should be :) — vol7ron
– vol7ron, Commented Aug 6, 2017 at 16:52

Nisarg Shah · Accepted Answer · 2017-08-06 12:58:30Z

5

You can use JSON.stringify - it converts JS objects into JSON strings.

console.log(JSON.stringify([[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]]));

answered Aug 6, 2017 at 12:58

Nisarg Shah

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3 Comments

Hoslack Over a year ago

I want to return it in a function. I don't want to use console.log

vol7ron Over a year ago

@Hoslack then return it

Nisarg Shah Over a year ago

JSON,stringify is itself a function, so you won't need to wrap it inside another function.

asmmahmud · Accepted Answer · 2017-08-06 13:12:36Z

1

Return your array after JSON.stringify it. like that:

var arr = [[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]];
return JSON.stringify(arr);

It will convert the array object into string.

answered Aug 6, 2017 at 13:12

asmmahmud

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