使用按钮的`onClick`事件而不是在表单元素上使用`onSubmit`事件来处理提交。

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英文:

using onClick event on button with submit type, instead of using onSubmit event on form element

问题

1- 在按钮上使用onClick事件与submit类型
2- 在表单元素上使用onSubmit事件

英文:

`What is the difference between these two?
which one is better and why?

1- using onClick event on button with submit type
2- using onSubmit event on form element
`

答案1

得分: 0

使用按钮的onClick事件与type="submit"以及在表单元素上使用onSubmit事件的主要区别在于事件触发的时机。

使用type="submit"的按钮上的onClick事件:

当点击按钮时,onClick事件在提交表单之前触发。
您可以在提交表单之前使用此事件执行附加的验证或对表单数据进行操作。
在表单元素上使用onSubmit

当表单被提交(通过点击提交按钮或在表单字段中按回车键),onSubmit事件在表单元素上触发。
您可以使用此事件进行验证、操纵表单数据,或在必要时阻止表单提交。
就哪种更好而言,这取决于您的用例。如果您需要在提交之前执行附加的验证或对表单数据进行操作,使用type="submit"的按钮上的onClick事件可能更合适。但是,如果您需要执行更复杂的验证或操作,或者需要在某些条件下阻止表单提交,那么在表单元素上使用onSubmit事件可能更合适。

最佳实践是在客户端和服务器端都对表单数据进行验证,以确保应用程序的安全性和准确性。

英文:

The main difference between using the onClick event on a button with type="submit" and using the onSubmit event on a form element is the timing of the event firing.

Using onClick on a button with type="submit"

When the button is clicked, the onClick event fires before the form is submitted.
You can use this event to perform additional validation or manipulation of the form data before submitting the form.
Using onSubmit on a form element

When the form is submitted (by clicking a submit button or pressing enter in a form field), the onSubmit event fires on the form element.
You can use this event to perform validation, manipulate the form data, or prevent the form from being submitted if necessary.
In terms of which one is better, it depends on your use case. If you need to perform additional validation or manipulation of the form data before submission, using the onClick event on the submit button may be more appropriate. However, if you need to perform more complex validation or manipulation, or need to prevent submission of the form under certain conditions, using the onSubmit event on the form element may be more appropriate.

It is a good practice to perform both client-side and server-side validation of form data to ensure the security and accuracy of your application.

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  • 本文由 发表于 2023年2月23日 20:04:48
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