The method to implement event delegation in jquery is: 1. Create an html sample file; 2. Introduce the jquery.min.js library file into the file; 3. Use the p element to create text within the div element, using button element creates a button; 4. In the script tag, use the "delegate" method to bind the click event to the button to execute the function function, and use the "slideToggle()" method to expand the p element; 6. Open the file in the browser to view the result. Can.
Operating system for this tutorial: Windows 10 system, jQuery3.6.0 version, Dell G3 computer.
The operations of using delegate() to implement event delegation in jquery are as follows:
1. Create a new html file named test.html to explain how jquery implements it. Specifies element event delegation.
2. In the test.html file, introduce the jquery.min.js library file.
3. In the test.html file, within the div element, use the p element to create a line of text and the button element to create a button.
4. In the script tag, use the delegate method to bind the click event to the button button in the div. When the button is clicked, the function function is executed.
#5. Within the function function, use the slideToggle method to expand and display the p element.
6. Open test.html in the browser, click the button to view the results.
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