Change a hidden input's value with jquery/javascript

问题

I have some hidden input values that I would like to have be changed to a certain value once a user clicks on a link.

回答1:

$('.someLink').click(function(){
    $('.someHiddenInput').val('new value');
});

I think this is what you mean.

HTML would look something like:

<a href="#" class="someLink">click me to change value</a>
<input type="hidden" name="hiddenVal" class="someHiddenInput" value="old value" />

回答2:

<input type="hidden" id="txtTextHdn" name="txtTextHdn" value="Y" />
<a href="#" id="testLink">Click Me!</a>

$("#testLink").click(function () {
    alert($("#txtTextHdn").val());
    $("#txtTextHdn").val('X');
    alert($("#txtTextHdn").val());
})

This should work.

回答3:

Do something like this:

JAVASCRIPT:

$(*link selector*).click(function(){
    $(*hidden selector*).val();
});

Here is a demo: http://jsfiddle.net/UbScn/

来源：https://stackoverflow.com/questions/14443687/change-a-hidden-inputs-value-with-jquery-javascript