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ready() function do in jQuery with suitable example.

Ethan Karla 247 28-Jul-2021

What does the ready() function do in jQuery? Explain it by giving suitable example.

jquery jquery 
Updated on 27-Nov-2023
Ethan Karla

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An enthusiastic, adaptive, and fast-learning person with a broad and acute interest in the discovery of new innovative drugs, I particularly enjoy collaborating with scientists from different disciplines to develop new skills and solve new challenges.

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Aryan Kumar

Aryan Kumar

27-Nov-2023

In jQuery, the $(document).ready() function is used to execute code when the DOM (Document Object Model) is fully loaded and ready to be manipulated. It ensures that your jQuery code runs after the HTML document has been parsed and is ready for interaction.

Here's an example to illustrate the use of $(document).ready():

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>jQuery Ready Function Example</title>
  <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
</head>
<body>

<!-- Your HTML content -->

<script>
  // This code will run when the DOM is fully loaded and ready
  $(document).ready(function () {
    // Your jQuery code goes here

    // Example: Change the text of an element
    $('#exampleElement').text('DOM is ready!');

    // Example: Attach a click event handler to a button
    $('#exampleButton').click(function () {
      alert('Button clicked!');
    });
  });
</script>

<!-- Your HTML content -->

</body>
</html>

In this example:

  • The jQuery library is included in the <head> section.
  • Inside the <body> section, there's a <script> block that contains your jQuery code.
  • The $(document).ready(function () { ... }) function is used to encapsulate the jQuery code that should run when the DOM is ready.

Inside the $(document).ready() function, you can include any jQuery code you want to execute once the DOM is ready. This is a good practice to ensure that your code won't run until the HTML document is fully loaded.

It's worth noting that a shorthand for $(document).ready() is $(function() {...}). Both notations are equivalent, and you can use either based on your preference.

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