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The Problem with Running JavaScript in SharePoint One of the most common issues developers face when writing JavaScript code for SharePoint pages is scripts running before the page has fully loaded. Since SharePoint pages have complex markup and loading behaviors, scripts often try to manipulate page elements before they are available in the DOM, resulting…

Definition of Callback Functions A callback function is a function that is passed as an argument to another function to be executed after an asynchronous operation completes. In JavaScript, functions are first-class objects that can be passed around and used in the same way as other objects. In SharePoint’s JavaScript object model (JSOM), many methods…