Let's talk about how to use stop() in jquery

jQuery, as a powerful JavaScript library, is often used to handle various interactive effects, animation effects, etc. in web pages. During these operations, it is sometimes necessary to pause or stop the ongoing animation effect. In this case, you can use the stop method in jQuery.

Usage of stop method

In jQuery, the stop method is used to stop the ongoing animation effect on the current DOM element. Its syntax format is as follows:

$(selector).stop(stopAll, goToEnd);

Among them, selector represents the DOM element selector that needs to be stopped; stopAll is an optional parameter indicating whether to stop all animation effects in the queue. The default value is false , only stops the current active animation; goToEnd is also an optional parameter, indicating whether to jump directly to the final state of the current animation. The default value is false, which is to gradually stop the animation effect.

For example, if you need to stop a running animation effect on the DOM element $("#myElem"), the code is as follows:

$("#myElem").stop();

In this code, the stop method The running animation effect will be stopped directly. After the current animation effect ends, no other animation effect will be performed.

If you need to stop the animation effects in all queues on the element, the code is as follows:

$("#myElem").stop(true);

In this code, the stopAll parameter of the stop method is set to true, which means stopping all queues on the current element. animation effect.

If you need to stop all animation effects in the queue and jump directly to the final state, the code is as follows:

$("#myElem").stop(true, true);

In this code, the goToEnd parameter of the stop method is set to true, which means stopping all queues. animation effect and jump directly to the final state.

Advanced usage of the stop method

The stop method can also be applied to handle multiple animation effects on an element. In this case, the internal implementation of the stop method is slightly different from the above usage. If multiple animation effects are performed on a DOM element at the same time, you can consider using the following code to stop one of the animation effects:

$("#myElem").stop("propertyName");

In this code, propertyName represents the name of the animation effect that needs to be stopped, which can include The following types:

• "queueName": Stop all animation effects in the queue.
• "fx": Stop all animation effects of the current (jQuery.fx) object.
• Any name used to define the animation effect, such as "opacity", "width", "height", etc.

Correspondingly, if you need to stop all animation effects on certain elements at the same time, the code is as follows:

$(".myElems").stop(false, true);

In this code, the default behavior when the stop method is not called is Only stop the currently active animation effects. Set the stopAll parameter to true to stop all animation effects on these elements.

Conclusion

Through the introduction of this article, we have learned about the basic usage of jQuery's stop method, as well as the implementation of some advanced usage. During the processing of animation effects, it is very convenient and efficient to use the stop method for some effects that need to be stopped or paused. However, we must pay attention to using the correct parameters when using the stop method, otherwise it will affect the operation of the entire animation effect.

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