Welcome to ShenZhenJia Knowledge Sharing Community for programmer and developer-Open, Learning and Share
menu search
person
Welcome To Ask or Share your Answers For Others

Categories

Any ideas why preventDefault is not working? Here's the code below . . . Tks!

<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">

    $(document).ready(function() {
        $("#text1").change(function(e) {
             e.preventDefault();
        });
    });

function myFunc() {
    alert("Random, annoying alert");
}

</script>
</head>

Just one HTML element in the form:

<body>
<form name="test" method="post">
    <input name="text1" id="text1" type="text" onchange="myFunc();">
</form>
</body>
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
thumb_up_alt 0 like thumb_down_alt 0 dislike
340 views
Welcome To Ask or Share your Answers For Others

1 Answer

You can’t use preventDefault on change events because it’s not cancelable:

$("#text1").change(function(e) {
    alert(e.cancelable?"Is cancelable":"Not cancelable");
});

The cancelable property is true only on events that can be prevented.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
thumb_up_alt 0 like thumb_down_alt 0 dislike
Welcome to ShenZhenJia Knowledge Sharing Community for programmer and developer-Open, Learning and Share
...