A brief discussion on the difference between jQuery before and insertBefore

In jQuery, you can use before and insertBefore to insert specified content before the specified element. There are differences in writing methods.

Let’s look at an example first:

In

Insert

toInsertContent

Implementation:

$('

toInsertContent

').insertBefore($( '.div1'));

or

$('.div1').before('

toInsertContent

');

Result ：

toInsertContent

div1

Wrong writing:

$ ('

toInsertContent

').before($('.div1'));

Result:

Not only will the element not be inserted in front of div1, but it will Delete div1

Summary:

Before is the element inserted in front of, followed by the inserted content element

insertBefore is preceded by the inserted content element, followed by which element Inserting

in front of an element cannot be reversed.

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