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This article mainly explains "how to understand the problem of javascript form submit". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to understand javascript form submit".

Simple validation is usually required before submitting the form. Suppose the js method is called validateCondition. There are two methods, each of which requires form to be used with the submit button, otherwise the validation method will not work. As follows:

1. The submit button is of button type

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In fact, the reason is: 2 this situation will trigger the onsubmit event of form, while 1 will not.

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