How to split 2nd element in array in JavaScript?

Question

How to split 2nd value in array?

Input [["ABCD","123,456"],["EFGH","565,565,878"]]

Required Output [["ABCD","123","456"],["EFGH","565","565","878"]]

I tried array.map(x => x[1].split(',')) but I am getting output as [["123","456"]],["565","565","878"]] 1st value is getting omitted. How to include 1st value also? If I use x.split(',') I am getting error

x.split is not a function

input.map(array => array.map(str => str.split(",")).flat()) — user5734311
– user5734311, Commented Aug 3, 2022 at 6:39
@ChrisG ok I see solutions are better in comments :) someone else says don't answer in comments. very confusing environment. Final story I had to remove my answer. — Diego D
– Diego D, Commented Aug 3, 2022 at 6:40
@DiegoDeVita 99.9% of questions here are dupes, typos or rtfm. I only post an answer if a) due diligence b) actually not answered before. But again, this never happens. So I downvote/flag the question but still help the OP with a comment (since they don't know their question is bad because SO removed the rules from the question form) — user5734311
– user5734311, Commented Aug 3, 2022 at 6:50
@DiegoDeVita Add to this that lots of high rep users apparently have decided to just F it and post answers to obvious dupes. SO has been going down the drain for years, all we can do to keep a minimum of quality control is to keep downvoting and flagging. — user5734311
– user5734311, Commented Aug 3, 2022 at 6:53

Ahmed Lazhar · Accepted Answer · 2022-08-03 06:44:14Z

4

Try this

input.map(([name, list])=>[name, ...list.split(',')])

answered Aug 3, 2022 at 6:44

Ahmed Lazhar

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