The $(document).ready(function() {…}) is used in JavaScript, specifically with the jQuery library, to ensure that your code executes only after the DOM (Document Object Model) has finished loading. This ensures that the elements on the page are available and ready for manipulation. It helps prevent issues where your code tries to interact with elements before they have been fully loaded, resulting in unexpected behavior. By wrapping your code within $(document).ready(function() {…}), you can be confident that your JavaScript code will run at the appropriate time when the DOM is ready to be accessed and modified.