How to Retrieve Underlying DOM Element from a jQuery Selector?

Retrieving DOM Elements from jQuery Selectors

Getting the underlying DOM element from a jQuery selector can be a convoluted task. Consider the following scenario:

<input type="checkbox" id="bob" />
var checkbox = $("#bob").click(function() { //some code });

To determine the checked value of the checkbox later, a direct method for accessing the DOM element is required. The is(":checked") method only serves as a workaround.

Solution:

jQuery provides an easy method to access the raw DOM element:

$("table").get(0); // or simply $("table")[0];

However, such access is generally not necessary. For instance, the checkbox example can be rewritten more concisely using jQuery methods:

$(":checkbox").click(function() {
  if ($(this).is(":checked")) {
    // do stuff
  }
});

Additionally, jQuery methods offer enhanced functionality and support cross-browser compatibility, making them preferable to raw DOM element access.

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