jQuery – Dynamically Create Button and Attach Event Handler

Calling .html() serializes the element to a string, so all event handlers and other associated data is lost. Here’s how I’d do it:

$("#myButton").click(function ()
{
    var test = $('<button/>',
    {
        text: 'Test',
        click: function () { alert('hi'); }
    });

    var parent = $('<tr><td></td></tr>').children().append(test).end();

    $("#addNodeTable tr:last").before(parent);
});

Or,

$("#myButton").click(function ()
{    
    var test = $('<button/>',
    {
        text: 'Test',
        click: function () { alert('hi'); }
    }).wrap('<tr><td></td></tr>').closest('tr');

    $("#addNodeTable tr:last").before(test);
});

If you don’t like passing a map of properties to $(), you can instead use

$('<button/>')
    .text('Test')
    .click(function () { alert('hi'); });

// or

$('<button>Test</button>').click(function () { alert('hi'); });