jQuery Filtering

Apart from using css selectors to filter a elemnt we want, We can also use some built-in jquery methods to filter the element.





Selects the first element in the set of matched elements.

$("#container p").first().addClass("highlight");


Selects the last element in the set of matched elements.

$("#container p").last().css("color", "blue");


Selects the element at the specified index (0-based) in the set of matched elements.

$("#container p").eq(1).css("font-style", "italic");


Reduces the set of matched elements to those that match the selector or pass the function's test.

$("#container p").filter(":contains('Third')").css("text-decoration", "underline");


Removes elements from the set of matched elements that match the selector.

$("#container p").not(":even").css("border", "2px dashed red");


<!DOCTYPE html>
<html lang="en">
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>jQuery Filtering Example</title>
  <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
    div {
      padding: 10px;
      margin: 5px;
      border: 1px solid #ccc;
    .highlight {
      background-color: lightyellow;

<div id="parentContainer">
  <p>First paragraph.</p>
  <p>Second paragraph.</p>
  <p>Third paragraph.</p>

  // Using first() to select the first element and apply styling
  $("#parentContainer p").first().addClass("highlight");

  // Using last() to select the last element and apply styling
  $("#parentContainer p").last().css("color", "blue");

  // Using eq() to select a specific index (1-based) and apply styling
  $("#parentContainer p").eq(1).css("font-style", "italic");

  // Using filter() to select elements based on a condition and apply styling
  $("#parentContainer p").filter(":contains('Third')").css("text-decoration", "underline");

  // Using not() to select elements that do not match a condition and apply styling
  $("#parentContainer p").not(":even").css("border", "2px dashed red");


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jQuery Filtering

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