This is a Knockout JS error. I faced this issue when I am trying to invoke click action of a link created. My link statement is like below. <a data-bind=”attr:{id:Reqid},text: Title,click: $(‘#popup1’).ojPopup(‘open’, ‘#btnTitle’)”></a> And on click of this link, I am getting the below error. TypeError: h.apply is not a function This is because the click handler needs to be…