Javascript-Ajax asynchronous loading, event triggering problems

Ajax asynchronously loads some pages (target-page). a button exists in the target-page, and you want to set an onclick function for the button. However, the trigger logic is always unavailable: front-end jqueryload () (ajax asynchronous) load the page, btn put the pseudo code in the target-page... ajax asynchronously loads some pages (target-page). a button exists in the target-page and you want to set an onclick function for the button. Unable to trigger

Logic: front-end jqueryload()(Ajax asynchronous) load pages, btn placed in target-page

The pseudocode is as follows: (if the code is too long, it will be replaced with the pseudo code)

Ajax. js:

$ (Function () {$ (xxx ). load (target-page); function a () {codes} setTimeout (function () {$ (btn ). click (a); // use settimeout to solve}, 0 );});

Can someone help me explain the principles and correct solutions ??

I personally think that the problem is that it is triggered after the basic js content (variable/function declaration) is loaded asynchronously, and the elements cannot be obtained.

Reply content:

Ajax asynchronously loads some pages (target-page). a button exists in the target-page and you want to set an onclick function for the button.Unable to trigger

Logic: front-end jqueryload()(Ajax asynchronous) load pages, btn placed in target-page

The pseudocode is as follows: (if the code is too long, it will be replaced with the pseudo code)

Ajax. js:

$ (Function () {$ (xxx ). load (target-page); function a () {codes} setTimeout (function () {$ (btn ). click (a); // use settimeout to solve}, 0 );});

Can someone help me explain the principles and correct solutions ??

I personally think that the problem is that it is triggered after the basic js content (variable/function declaration) is loaded asynchronously, and the elements cannot be obtained.

Take a look at the document: http://api.jquery.com/load/

In addition,target-pageIt's not a variable. what is it?

Reference Code

// The second parameter is data. null is not directly given, or {} // you can omit the example in the document and use callback as the second parameter $ (xxx ). load (url, function () {// do callback here });