Suppose there are several buttons in an HTML file and the following code is executed:
const buttons = document.querySelectorAll('button');
buttons.forEach((btn) => {
btn.addEventListener('click', (e) => {
console.log(btn.textContent);
console.log(e.target.textContent);
});
});
What distinguishes 'btn' from 'e.target'? While event delegation could improve the code structure, I'm curious if these two variables are identical and can be used interchangeably.
It's important to note that event.target and event.currentTarget may refer to different objects in JavaScript. The former points to the object where the event originated, which might not necessarily be the same as the element with the listener attached. It could actually be a child element that triggered the event bubbling up to the parent element.
In contrast, event.currentTarget specifically refers to the object with the listener attached and can be used interchangeably with it.
For more information, check out the following resources: https://developer.mozilla.org/en-US/docs/Web/API/Event/target https://developer.mozilla.org/en-US/docs/Web/API/Event/currentTarget
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