1. The bind() function is to bind a processing function to the event of each selected element. Its syntax is as follows: bind(type, [data], fn)
Type is one or more types of strings, such as click or change, which can also be customized; types that can be called by type include blur, focus, load, resize, scroll, unload, click, dbclick, mousedown, etc. event. The parameter data is an additional data object passed as the event.data property value. The parameter fn is the handler function bound to the event of each selected element.
2. Sample code :
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