HTML
<button id="clickMe" tabindex=0>Click Me!</button>
JS
$('#clickMe').button();
$('#clickMe').click(function() {
alert('hey');
});
$(document).keypress(function (e) {
var key = e.keyCode ? e.keyCode : e.which;
//detect when the user has hit enter
if (key == 13) {
//click the focused element
$(document.activeElement).click();
}
});
Why does this alert fire twice when you hit tab to focus the button and enter for the keypress event, but only fires once when you click the button with the mouse?
示范
EDIT: tab + enter doesn't work at all in IE 10
因为当焦点位于按钮上时按“Enter”键会本机触发“click”事件。你also获取“按键”事件，然后再次触发“单击”事件。
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