How to make Array to Variable

Question

i have some array looks like this:

const [listArr, setLA]= useState([
    {
      id: Math.floor(Math.random * 100000),
      data: "This is data 1",
    },
    {
      id: Math.floor(Math.random * 100000),
      data: "This is data 2",
    },
    ....(and so on)
  ]);

and i need to extract those data to become 1 variable and get it using console looks like

console.log(data);
//This is data 1\nThis is data2

I've tried using foreach to put 1 by 1 but still didn't work, can you guys help me?

What do you mean by one variable? Could you specify more what should be done? — Rajesh Paudel
– Rajesh Paudel, Commented Dec 14, 2021 at 6:20
Try console.log(listArr.map(({ data }) => data).join('\n')) — Hao Wu
– Hao Wu, Commented Dec 14, 2021 at 6:22
DUDEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE @HaoWu you are awesome, please put this on answer column — Haksatrya Bhaswara
– Haksatrya Bhaswara, Commented Dec 14, 2021 at 6:26
Hey @RajeshPaudel thanks for your comment, i'm sorry, i'll try to specify more later.. — Haksatrya Bhaswara
– Haksatrya Bhaswara, Commented Dec 14, 2021 at 6:27

Hao Wu · Accepted Answer · 2021-12-14 06:33:46Z

1

You may use Array#map function to get an array of the values you want and then join them into a string in order to print to the console:

console.log(listArr.map(({ data }) => data).join('\n'))

answered Dec 14, 2021 at 6:33

Hao Wu

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