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Why do JavaScript events fail to trigger after dynamically adding elements to the DOM?

Patricia Arquette
Release: 2024-11-16 10:19:02
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Why do JavaScript events fail to trigger after dynamically adding elements to the DOM?

JavaScript Event Propagation Failure After Element Addition

Question:

Why does JavaScript fail to trigger events for elements appended to the DOM after its initial loading?

Answer:

jQuery operates on elements present in the DOM when it loads. Subsequent element additions are not recognized. To overcome this limitation, implement event delegation by passing events from newly added elements to an existing DOM element.

In the provided code, move the event handler for the "Edit" links to a parent element that exists at page load using the on() method:

$(document).on('click', '.races', function(e) {
  // Event handling logic
});
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This modification ensures that JavaScript continues to respond to events from elements added to the DOM dynamically.

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