What is the best way to fetch a UniqueID using document.getElementById()?

I am looking to utilize the __doPostBack JavaScript function.

__doPostBack(obj.UniqueID,'');

The challenge I'm facing is that I only have the ClientID of my object -

ctl00_cpholder_myObjId 
document.getElementById("ctl00_cpholder_myObjId").id //This will obtain ctl00_cpholder_myObjId, however UniqueID should be ctl00$cpholder$myObjId

Is there a way for me to retrieve the UniqueID for the PostBack? Can I simply substitute '_' with '$'?
Thank you.

Answer №1

For those with a client id looking to obtain a unique id using JavaScript, consider the following:

var uniqueId = document.getElementById("ctl00_cpholder_myObjId").name;

or

var uniqueId = document.getElementById("ctl00_cpholder_myObjId").getAttribute("name");

The name property will provide the unique id.

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