export html table to csv

Question

I am trying to add a feature of csv download option in my website. It should convert the html table present in the website in to csv content and make it downloadable. Ive be

Answer 1

(1)This is the native javascript solution for this issue. It works on most of modern browsers.

function export2csv() {
  let data = "";
  const tableData = [];
  const rows = document.querySelectorAll("table tr");
  for (const row of rows) {
    const rowData = [];
    for (const [index, column] of row.querySelectorAll("th, td").entries()) {
      // To retain the commas in the "Description" column, we can enclose those fields in quotation marks.
      if ((index + 1) % 3 === 0) {
        rowData.push('"' + column.innerText + '"');
      } else {
        rowData.push(column.innerText);
      }
    }
    tableData.push(rowData.join(","));
  }
  data += tableData.join("\n");
  const a = document.createElement("a");
  a.href = URL.createObjectURL(new Blob([data], { type: "text/csv" }));
  a.setAttribute("download", "data.csv");
  document.body.appendChild(a);
  a.click();
  document.body.removeChild(a);
}

table {
  border-collapse: collapse;
}

td, th {
  border: 1px solid #aaa;
  padding: 0.5rem;
  text-align: left;
}

td {
  font-size: 0.875rem;
}

.btn-group {
  padding: 1rem 0;
}

button {
  background-color: #fff;
  border: 1px solid #000;
  margin-top: 0.5rem;
  border-radius: 3px;
  padding: 0.5rem 1rem;
  font-size: 1rem;
}

button:hover {
  cursor: pointer;
  background-color: #000;
  color: #fff;
}

  

    

      
Name
      
Author
      
Description
    
  
  

    

      
jQuery
      
John Resig
      
The Write Less, Do More, JavaScript Library.
    
    

      
React
      
Jordan Walke
      
React makes it painless to create interactive UIs.
    
    

      
Vue.js
      
Yuxi You
      
The Progressive JavaScript Framework.
    
  



  csv

(2) If you want a pure javascript library, FileSaver.js could help you save the code snippets for triggering file download. Besides, FileSaver.js will not be responsible for constructing content for exporting. You have to construct the content by yourself in the format you want.