How Can I Precisely Change a TD Tag's Class Name Using jQuery Within an Event Handler?

jQuery: Changing Class Names with Precision

When modifying the class of a specific HTML tag, the precision of selection is essential. This becomes even more crucial when working within event handlers of other DOM elements.

Consider modifying the class of a tag based on its ID, like:

How can we achieve this within the click event of another DOM object?

jQuery to the Rescue

jQuery provides a robust set of functions tailored specifically for manipulating element classes. Here's how you can use them:

Setting the Class (Overwrite)

Use .attr() to set the class regardless of its previous value:

$("#td_id").attr('class', 'newClass');

Adding a Class

Use .addClass() to append a class to the existing ones:

$("#td_id").addClass('newClass');

Swapping Classes (Toggle)

Use .toggleClass() to alternately remove or add a class:

$("#td_id").toggleClass('change_me newClass');

jQuery Class Methods

For more options, jQuery offers a comprehensive suite of methods for manipulating the class attribute:

• .hasClass()
• .removeClass()
• .toggleClass()
• .switchClass()

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