How to Change a TD Element's Class Using jQuery Based on its ID?
Dec 27, 2024 pm 05:23 PM
jQuery: Change the Class Name of a Specific DOM Element based on ID
This question addresses a common scenario where we need to modify the class name of a specific td element within a web page. Our goal is to achieve this programmatically from within the click event handler of another DOM element.
Solution using jQuery:
jQuery provides multiple methods for manipulating the class attribute of an HTML element.
Setting the Class (Replace Existing Class):
To set the class name entirely, regardless of its previous value, use the .attr() method:
$("#td_id").attr("class", "newClass");
Adding a Class (Append to Existing Class List):
If you wish to add a class while preserving any existing classes, use the .addClass() method:
$("#td_id").addClass("newClass");
Toggling Classes (Switch Between Classes):
For a convenient way to swap classes, use the .toggleClass() method:
$("#td_id").toggleClass("change_me newClass");
These methods allow us to dynamically change the class name of the target td element based on its ID, enabling us to modify the element's styling programmatically.
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