Append text to input field
Solution 1:
$('#input-field-id').val($('#input-field-id').val() + 'more text');<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input id="input-field-id" />Solution 2:
There are two options. Ayman's approach is the most simple, but I would add one extra note to it. You should really cache jQuery selections, there is no reason to call $("#input-field-id") twice:
var input = $( "#input-field-id" );
input.val( input.val() + "more text" );
The other option, .val() can also take a function as an argument. This has the advantange of easily working on multiple inputs:
$( "input" ).val( function( index, val ) {
return val + "more text";
});