jquery - Form data value from view - Javascript -

i'm trying append data form data view, returns undefined code:

html:

<input type="text" id="iditem">

<button id="idbtn" type="button" onclick="mymethod()">aceptar</button>

javascript:

function mymethod(){     var formdata = new formdata()     formdata.append("nombre",$('#iditem').value) //input-text } 

any suggest?

thanks.

try change $('#iditem').value => $('#iditem').val()

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