Technology Sharing

(Continued from the previous article) Create a variable on the front end to update the number of clicks in real time on the front end page

2024-07-08

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To achieve real-time update of the number of clicks on the front-end page, it is necessary to maintain a variable on the front-end to store the current number of clicks. This variable is usually in the Vue componentdataOptions and updated in component lifecycle methods or event handlers.

Here are the basic steps to achieve this functionality:

  1. Defining variables: In the Vue componentdataA variable is defined in the function to store the number of clicks.

  2. Initialize click count: In the componentmountedIn the hook, you can get the initial number of clicks from the backend through an AJAX request and assign it to the variable.

  3. Binding click events: In the Vue template, bind the click event to the element whose click count needs to be counted, and update the variable in the event handling function.

  4. Sending request to the backend: In the click event processing function, in addition to updating the front-end variables, it is also necessary to send a request to the back-end to notify the back-end of the increase in the number of clicks.

  5. Live Update:After receiving the request, the backend updates the number of clicks in the database. If you need to implement real-time updates of click counts between multiple users on the front-end page, the backend needs to provide a mechanism (such as WebSocket) to push the latest click counts to all online clients.

  6. Show Clicks: In the Vue template, use data binding to bind the click count variable to the DOM element so that it can be displayed on the page.

Here is a simple Vue component example showing how to use a variable to implement real-time updates of the number of clicks: