How to implement dynamic loading and repeated binding in JS
This time I will show you how to implement dynamic loading and repeated binding in JS. What are the precautions for implementing dynamic loading and repeated binding in JS? The following is a practical case, let's take a look.
Preface
When adding a piece of data, dynamic loading is used to display it on the interface. Later, a serious bug was discovered. Take this thing I made. Take notes as an example. When I add a piece of data and then clickDelete, I am prompted whether to delete it, as shown below:
Text
When content is added dynamically, the events that need to be used in the added p are usually written, such as click events/ Chang events, etc. Take my deletion event as an example. Since the deletion event must be written under the event of adding a note, when the first piece of data is added, it is bound once, when the second piece of data is added, it is bound once, and when the nth piece of data is added, it is bound once. , n times of deletion events have been bound, so when deleting the nth piece of data, you will be prompted n times to confirm the deletion. Now that the cause of the error has been found, it can be solved. Before binding the delete event, just unbind the last bound event. Code://解绑 $(".deletebtn").off("click"); $(".update").off("change"); //绑定 $(".deletebtn").bind('click', delete_click); $(".update").bind('change', change_fonts);I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website! Recommended reading:
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JavaScript runs in browsers and Node.js environments and relies on the JavaScript engine to parse and execute code. 1) Generate abstract syntax tree (AST) in the parsing stage; 2) convert AST into bytecode or machine code in the compilation stage; 3) execute the compiled code in the execution stage.

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.

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JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.


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