Скачать или смотреть Change Form Input Placeholder via jQuery | DOM Manipulation

DOM means, Document Object Model. DOM treats HTML as a tree structure, where each node is an object, representing a part of document. When you request a web page via web browser, web browser loads the DOM for requested page. In the DOM, there are nodes or objects, that can be manipulated and changed via JavaScript or JavaScript libraries. By changing DOM, you make website interactive for users. Users can interact with websites. Website takes input from user, and reflects changes.

In this video we are manipulating DOM, to change placeholder for input fields. This technique is helpful in case where you use any plugin or external library that throws a dynamic form, with input fields in website. Now you don't have access to the input field, to change it. You can still target the elements, and apply required changes. Lets say that external resource, loaded an external form with fields. After it is loaded in DOM, you can target it by class, ID or tag to change attributes of required elements. Placeholder is an attribute of input. Here is how we will change it via jQuery.

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