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Make HTML hidden input visible

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萌比男神i
萌比男神i 2021-01-12 15:04

I want to change an invisible HTML input in to visible when I click a button as shown below.

My HTML line that create the hidden input is:
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3条回答
  • 执念已碎
    2021-01-12 15:44

    You should change the type of input element as :

     y.setAttribute('type','text'); 
 //or
 y.type = 'text';

    1) Either user java script inside body tag as below :

    <input type="hidden" id="txtHiddenUname" value="invalid input" />

<script type="text/javascript">
var y = document.getElementById("txtHiddenUname");
y.type= "text";
</script>

    OR

    2) Use some event handler such as onload 

    <head>
<script type="text/javascript">
function on_load(){
    var y = document.getElementById("txtHiddenUname");
    y.type= "text";
}
    </script>
</head>

<body onload = "on_load()">

<input type="hidden" id="txtHiddenUname" value="invalid input" />

...

    so that the DOM is ready.

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  • 甜味超标
    2021-01-12 15:49

    Here is not matter of CSS it's matter of attributes, So you need to change the attribute type from hidden to something else like text

    Kindly check this [how-to-change-html-object-element-data-attribute-value-in-javascript][1]

    check this: How to change HTML Object element data attribute value in javascript. To change the attribute value using jQuery or Javascript

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  • 傲寒
    2021-01-12 15:58 
    <input type = "hidden", id = "abbriv", value = "Some Random Text"/>

<script>
        function f1()
        {
            var x = document.getElementById("abbriv").value;
            document.getElementById("demo").innerHTML = x;
        }
    </script>
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