Looking for guidance on how to set an index to user-provided values in a textbox, append them to a table in a new row, and display that index in the first column of every row. I am unfamiliar with this type of functionality.
$(document).ready(function(){
$('#addbtn').click(function(){
var s = $.trim($('#user').val());
var i = 0;
var c = 1;
var count = i+c;
if(s !=''){
$('#result').attr('src','http://www.clipartbest.com/cliparts/abT/y4b/abTy4bcL7.png');
$('#usertbl').append('<tr height=\"30\">'+'<td>'+count+'</td>'+'<td>'+s+'</td>'+'<td>'+'</td>'+'</tr>');
}
$('#user').val(' ');
});
});table,tr,th,td{
border:1px solid #dddddd;
border-collapse:collapse;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="user"/>
<button id="addbtn">Add</button><span><img src="http://pix.iemoji.com/images/emoji/apple/ios-9/256/cross-mark.png" id="result" height="50" width="50"/></span>
<table style="width:100%;" id="usertbl">
<tr height="30">
<th width="34%">Serial Number</th>
<th width="33%">User NAme</th>
<th width="33%">Content</th>
</tr>
</table>