Newly added controls to the page are inexplicably deleted.

Question

var query_box = $("<div class=query_box><input class=query_box_value /><span class=query_box_text></span><button class=query_box_button>›</button> </div>"); $('form').append(query_box); $('form .query_box_value').attr('name',n);

Click on the element added above In the button control, the added elements were inexplicably deleted

Answer 1

In software development, it is very common to add new controls because they can implement more functions on the page or bring a better user experience. However, sometimes we encounter some inexplicable problems, such as newly added controls to the page suddenly disappearing. This situation will not only waste our development time, but also affect the user experience, causing both developers and users to be dissatisfied. Let’s talk about the reasons why this problem occurs and how to solve it.

First of all, this problem may be caused by the programmer himself. When programmers add controls, they may accidentally write the wrong code or add some unnecessary code. These codes may not affect the normal operation of the program, but they may affect the implementation of certain functions, resulting in the deletion of newly added controls. How to solve? The easiest way is to review the code and remove unnecessary code.

Secondly, this problem may be caused by the source code management tool. Source code management tools often automatically update the code base, causing some controls to be accidentally removed. We can determine how the code has changed by looking at the history of the code base. If it is caused by a problem with the code management tool, be sure to back up the code immediately to prevent data loss.

In addition, this problem may also be caused by some bugs. For example, during the running of the program, some bugs will cause some controls to be deleted. In this case, it is also necessary to troubleshoot the problem in time and fix the bug to ensure the normal operation of the program.

Finally, when encountering this kind of problem, we need to troubleshoot it as soon as possible, because the deletion of newly added controls is likely to affect the stability of the program and the user experience. We can avoid this problem in the following ways:

1. Follow a certain development process and do not conduct experiments directly on the formal environment.

2. Multiple backup program codes to find the cause immediately after a problem occurs.

3. Check the code frequently to find and eliminate problems in the code in a timely manner.

4. Use some code analysis tools to check whether the control is loaded and used correctly during program running.

In short, during the development process, pay attention to reasonable planning of time and setting process, and do timely code maintenance and backup work, so as to effectively avoid the problem of newly added controls being inexplicably deleted. In this way, the stability and user experience of the program can be better guaranteed, and the development process can be more efficient.