jQuery 在提交表单上，返回 false 不起作用
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On submit form, return false not working
提问by Nejc Galof
When I submit the form I got an alert message. When I accept the alert it will submit the form anyway. Returning false is ignored.
Onclick can not be used. I try with var x = document.forms["form"]["fname"].value;and still same.
当我提交表单时，我收到了一条警告消息。当我接受警报时，它无论如何都会提交表单。返回 false 将被忽略。Onclick 不能使用。我试过了var x = document.forms["form"]["fname"].value;，还是一样。
<form id="f" method="post" name="form" onsubmit="return validateForm();" action="#">
<input type="text" name="fname" id="test" />
<input type="submit" value="submit"/>
</form>
<script type="text/javascript">
function validateForm() {
var x = document.getElementById('test').value;
if (x == null || x == 0 || x == "0") {
alert("Stop");
return false;
}
}
</script>
回答by Aashray
Instead of <input type="submit" value="submit"/>use <input type="button" value="Submit" onclick='validateForm()'/>.
而不是<input type="submit" value="submit"/>使用<input type="button" value="Submit" onclick='validateForm()'/>.
In your JS:
在你的 JS 中：
<script type="text/javascript">
function validateForm() {
var x = document.getElementById('test').value;
if (x == null || x == 0 || x == "0") {
alert("Stop");
}
else
document.form.submit();
}
</script>
回答by Saranya Sadhasivam
Give this script inside of head tag and check it.
将此脚本放在 head 标签内并检查它。
<script type="text/javascript">
function validateForm() {
var x = document.getElementById('test').value;
if (x == null || x == 0 || x == "0") {
alert("Stop");
return false;
}
}
</script>
