jquery html disappears on click event

Question

Please see the following code:

    
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Answer 1

Otherwise you can simply do a return false which will do both preventDefault and stop propagation

$('#helloButton').click(function (e) {

    $('#hello').html('<div>hello world</div>');
    return false;
});

Answer 2

in order to prevent the form from posting, so that you can see your changes, you need to call preventDefault()

$('#helloButton').click(function (e) {
    e.preventDefault();
    $('#hello').html('<div>hello world</div>');
});