Using SetInterval and settimeout in jquery prompts for errors with missing objects, and the workaround is as follows:

Calling other methods directly in Ready will prompt for missing object errors, and the workaround is as follows:

Method 1. The extension of jquery can be used to solve this problem.

$ (document). Ready (function () {

$.extend ({
Show:function () {
Alert ("Ready");
}
});
SetInterval ("Show ()", 3000);
});

Method 2. Do not use quotation marks and parentheses when specifying functions that are timed out.

 
$ (function () {
Function Show () {
Alert ("Ready");
}
SetInterval (show,3000);//Note the function name does not have quotation marks and brackets!

Use SetInterval ("Show ()", 3000); "Missing objects" will be reported

});

Difference:

SetTimeout ()

To execute an expression or function from a specified time delay after loading;

Execute only once; use with Window.cleartimeout.

SetInterval ()

At execution time, it executes an expression or function from the loading of the page at a specified interval (functionally similar to a recursive function); used with Window.clearinterval.

Using SetInterval and settimeout in jquery prompts for errors with missing objects, and the workaround is as follows: