how to get hidden element value in javascript
how to ge开发者_开发知识库t hidden element value in javascript
using the following document function
document.getElementById("elementId").value;
elementId-> id defined for the hidden element
If the element has an id attribute and if it has a value attribute then you can use value property
document.getElementById( "hidElem" ).value;
for a hidden input element like
<input type="hidden" id="hidElem" />
otherwise you can use textContent
property
document.getElementById( "hidElem" ).textContent;
for a hidden div element like
<div style="display: none;" id="hidElem">value of hidden element</div>
Putting ids on all your elements is overkill in my opinion. You can access them by their name attribute - all you need is a reference to the form object.
<form id="blah">
<input type="hidden" name="inputOne" value="1" />
<input type="hidden" name="inputTwo" value="2" />
</form>
var formObj = document.getElementById('blah');
alert("Input one value: " + formObj.inputOne.value);
alert("Input two value: " + formObj.inputTwo.value);
This applies to all types of form input.
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