Download a table on a website with JavaScript

downloadtable.js

// Place to store all the strings for the CSV
var stringBuilder = [];

// Get the table, this one happens to be adminlist
// Could probably make the more generic
var table = document.getElementsByClassName('adminlist')[0];
var tbody = table.getElementsByTagName('tbody')[0]
var rows = tbody.getElementsByTagName('tr');

// Loop through each row
for (var i = 0; i < rows.length; i++) {
    // Grab the data from each row and add it to the
    // temporary row
    var data = rows[i].getElementsByTagName('td');
    var tempRow = [];
    for (var j = 0; j < data.length; j++) {
	tempRow.push('"' + data[j].innerText + '"');
    }

    // Join all the rows into a string with a ,
    // to complete the csv row
    stringBuilder.push(tempRow.join(','));
}

// Create a blob place all the content into it
// and then do a silly hack to download it
var myBlob = new Blob([stringBuilder.join('\n')], {"type": "text\/plain"});
var myLink = document.createElement('a');
document.body.appendChild(myLink);
myLink.href = window.URL.createObjectURL(myBlob);
myLink.download = "users.csv";
myLink.click();;