Usage of end method in jQuery

When we use find, filter and other methods on the result set, the result set will be changed.

This method of changing the original result set is called destructive jQuery method

jQuery cookbook has the following definition:

A destructive operation is any operation that changes the set of matched jQuery elements, which means any traversing or manipulation method that returns a jQuery object, includingadd() , andSelf(), children(), closes(), filter(), find(), map(), next(), nextAll(), not(), parent(), parents(), prev(), prevAll(), siblings(), slice(), clone(), appendTo(), prependTo(), insertBefore(), insertAfter(), replaceAll().

The specific usage is as follows

	



	
Text
	
Middle Text
	
Text

When executing filter('.middle') on the result of $('p') , only 7c61ad4612246177aec1482cc8266012Middle 45a2772a6b6107b401db3c9b82c049c2Text54bdf357c58b8a65c66d7c19c8e4d11494b3e26ee717c64999d7867364b1b4a3 matches the result.

Continue to perform the above operation end(), then the effect of filter() will be undone, and the result set will contain three e388a4556c0f65e1904146cc1a846bee

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