
preventdefault() usage
preventdefault() usage is to handle mouse events or keyboard events. This method can prevent the default behavior of the event, such as preventing the automatic submission of the form, preventing the jump of the link, etc. For more information about preventdefault(), you can visit the following article.


preventdefault() usage

Detailed explanation of preventdefault() usage
preventdefault() usage is to handle mouse events or keyboard events. This method can prevent the default behavior of the event, such as preventing the automatic submission of the form, preventing the jump of the link, etc.
Dec 06, 2023 pm 01:56 PM
How to prevent preventdefault() from taking effect
Methods for preventdefault() to prevent it from taking effect: 1. Use event proxies. Event proxies are a technology that adds event listeners to parent elements and then triggers events on child elements through event bubbling. You can do this during the event bubbling. Modify or prevent the default behavior of the event; 2. Flag variable. If you need to decide whether to block the default behavior of the event based on conditions in the same event handler, you need to use a flag variable to control the call of the preventDefault() method.
Dec 06, 2023 pm 02:04 PM
The opposite function of preventdefault()
The opposite function of preventDefault() does not exist. However, you can write a function as needed to undo the behavior of preventDefault(). First call preventDefault() in the event handler, and then immediately call this new function to undo the effect of preventing the default behavior. This new function resets the event's state so that the event's default behavior occurs normally.
Dec 06, 2023 pm 02:08 PM
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