Javascript - get all table -> tr values

Answer 1

No jQuery, innerHtml or other evil / heavy functions, just plain old JavaScript:

// Get the first table in the document.
var table = document.getElementsByTagName('table')[0];
// Get the third row of this table (0-index 3rd = 2)
var emailRow = table.rows[2];
// Get this element's content.
var emailContent = emailRow.firstChild.textContent;

You could write it in 1 line:

var emailContent = document.getElementsByTagName('table')[0].rows[2].firstChild.textContent;

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If you want to find all email addresses in a table:

var emails = [];
var table = document.getElementsByTagName('table')[0];
var rows = table.rows;
for (var i = 0; i < rows.length; i++) {
    var rowText = rows[i].firstChild.textContent;
    if (~rowText.indexOf('@')) { // If the content of the row contains a '@' character (This could be replaced with a regex check)
            // Also, I personally prefer to use '~' over '> -1' for indexOf(), but both would work.
        emails.push(rowText);
    }
}
console.log(emails);

Working example