How jQuery uses the same function to implement set and get

This article mainly introduces how jQuery uses the same function to achieve set and get, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Implement set and get with the same function

This is true of many methods in jQuery, including the following:

$("# msg"). Html (); / / returns the html content of the element node whose id is msg. $("# msg"). Html ("new content"); / / write "new content" as a html string to the element node content where id is msg, and the page displays bold new content$ ("# msg"). Text (); / / returns the text content of the element node whose id is msg. $("# msg"). Text ("new content"); / / write "new content" as a plain text string to the element node content where id is msg, and the page displays new content$ ("# msg"). Height (); / / returns the height of the element whose id is msg $("# msg"). Height ("300"); / / sets the height of the element whose id is msg to 300 $("# msg"). Width () / / returns the width of the element whose id is msg $("# msg"). Width ("300"); / / sets the width of the element whose id is msg to 300 $("input") .val (); / / returns the value value of the form input box $("input"). Val ("test"); / / sets the value value of the form input box to test$ ("# msg"). Click () / / trigger the click event of an element whose id is msg $("# msg") .click (fn); / / add a function for id to the element click event of msg. Similarly, blur,focus,select,submit events can be called in two ways.

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