Download sql.js DB as a file

download_SQLjs_DB.js

function _sqljs_download(name) {

    function downloadBytes(body, filename, extension = 'db') {
        const blob = new Blob([body]);
        const fileName = `${filename}.${extension}`;

        const link = document.createElement('a');

        if (link.download !== undefined) {
          const url = URL.createObjectURL(blob);
          link.style.visibility = 'hidden';
          link.setAttribute('href', url);
          link.setAttribute('download', fileName);
          
          document.body.appendChild(link);
          link.click();
          document.body.removeChild(link);
        }
    }

    const str = localStorage.getItem(name);
  
    if (!str) {
        console.error('No DB with name: ', name);
        return;
    }
  
    const arr = JSON.parse(str);
    const intArr = new Int8Array(arr);

    downloadBytes(intArr, name);
};