How can I add a table column dynamically in JavaScript?

Question

I have two arrays and need to write the data from both to two columns of a table. At this point I can write correctly data from the first array only and when I want to add the second array data, it gets added into rows.

orderGelen and userNameArr are my arrays. Here you can see my code:

for(let data of orderGelen){ 
   dataHtmlIds += `<tr><td>${data}</td>`;
}

for(let usr of userNameArr){ 
   dataHtmlUsr += `<td>${usr}</td></tr>`;

}

dataHtml = dataHtmlIds + dataHtmlUsr;
console.log(dataHtml);

And here I write that to table:

function tableConfig() { 

    tableBody.innerHTML = dataHtml;
}

How can I make the second column userNameArr data?

Can you share demo?

vadivel a
– vadivel a

2020-03-13 16:14:49 +00:00
Commented Mar 13, 2020 at 16:14 — vadivel a
– vadivel a, Commented Mar 13, 2020 at 16:14

Ahmed Kesha · Accepted Answer · 2020-03-13 16:17:39Z

1

Try to put two arrays in one array like this

        const all = orderGelen.map((item, index) => ({ id: item, username: userNameArr[index] }));
        let html = '<table>';
        for (let row of all) {
            html += `<tr><td>${row.id}</td><td>${row.username}</td></tr>`;
        }
        html+='</table>'

        console.log(html);

answered Mar 13, 2020 at 16:17

Ahmed Kesha

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3 Comments

makeser Over a year ago

Its working like charm but its make overwriting in previous datas. I can see only last data in table. How can I solve it ?

makeser Over a year ago

Yes but I already delete that html variable, I directly add to my table. Its make again.

Ahmed Kesha Over a year ago

so right now you have table and you want to add id column and username column to this table ? or you want to add new rows ?

Abdullah Abid · Accepted Answer · 2020-03-13 16:42:34Z

0

you could do something like

var dataHtml = "";
  for (
    let i = 0, j = 0;
    i < userNameArr.length || j < orderGelen.length;
    i++, j++
  ) {
    dataHtml += `<tr>`;
    dataHtml += `<td>${userNameArr[i] ? userNameArr[i] : ""}</td>`;
    dataHtml += `<td>${orderGelen[j] ? orderGelen[j] : ""}</td>`;
    dataHtml += `</tr>`;
  }

and you could write to the table like

  function tableConfig() {  
    tableBody.innerHTML = dataHtml;
   }

Hope this helps

edited Mar 13, 2020 at 16:42

answered Mar 13, 2020 at 16:36

Abdullah Abid

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