How do you create a hidden field in JavaScript into a particular form ?
<html>
<head>
<script type="text/javascript">
var a =10;
function test() {
if (a ==10) {
// ... Here i need to create some hidden field for form named = chells
}
}
</script>
</head>
<body >
<form id="chells" name="formsdsd">
<INPUT TYPE=BUTTON OnClick="test();">
</form>
</body>
</html>
This question is related to
javascript
You can use this method to create hidden text field with/without form. If you need form just pass form with object status = true.
You can also add multiple hidden fields. Use this way:
CustomizePPT.setHiddenFields(
{
"hidden" :
{
'fieldinFORM' : 'thisdata201' ,
'fieldinFORM2' : 'this3' //multiple hidden fields
.
.
.
.
.
'nNoOfFields' : 'nthData'
},
"form" :
{
"status" : "true",
"formID" : "form3"
}
} );
var CustomizePPT = new Object();_x000D_
CustomizePPT.setHiddenFields = function(){ _x000D_
var request = [];_x000D_
var container = '';_x000D_
console.log(arguments);_x000D_
request = arguments[0].hidden;_x000D_
console.log(arguments[0].hasOwnProperty('form'));_x000D_
if(arguments[0].hasOwnProperty('form') == true)_x000D_
{_x000D_
if(arguments[0].form.status == 'true'){_x000D_
var parent = document.getElementById("container");_x000D_
container = document.createElement('form');_x000D_
parent.appendChild(container);_x000D_
Object.assign(container, {'id':arguments[0].form.formID});_x000D_
}_x000D_
}_x000D_
else{_x000D_
container = document.getElementById("container");_x000D_
}_x000D_
_x000D_
//var container = document.getElementById("container");_x000D_
Object.keys(request).forEach(function(elem)_x000D_
{_x000D_
if($('#'+elem).length <= 0){_x000D_
console.log("Hidden Field created");_x000D_
var input = document.createElement('input');_x000D_
Object.assign(input, {"type" : "text", "id" : elem, "value" : request[elem]});_x000D_
container.appendChild(input);_x000D_
}else{_x000D_
console.log("Hidden Field Exists and value is below" );_x000D_
$('#'+elem).val(request[elem]);_x000D_
}_x000D_
});_x000D_
};_x000D_
_x000D_
CustomizePPT.setHiddenFields( { "hidden" : {'fieldinFORM' : 'thisdata201' , 'fieldinFORM2' : 'this3'}, "form" : {"status" : "true","formID" : "form3"} } );_x000D_
CustomizePPT.setHiddenFields( { "hidden" : {'withoutFORM' : 'thisdata201','withoutFORM2' : 'this2'}});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div id='container'>_x000D_
_x000D_
</div>I've found this to work:
var element1 = document.createElement("input");
element1.type = "hidden";
element1.value = "10";
element1.name = "a";
document.getElementById("chells").appendChild(element1);
You can use jquery for create element on the fly
$('#form').append('<input type="hidden" name="fieldname" value="fieldvalue" />');
or other way
$('<input>').attr({
type: 'hidden',
id: 'fieldId',
name: 'fieldname'
}).appendTo('form')
Source: Stackoverflow.com