jquery load () usage and ready () usage and differences

$ (document). Ready (FN) and $ (window). Load (FN), the difference is: $ (document). Ready (FN) occurs when the HTML of the page itself is loaded, $ (window). Load (FN) You will wait until everything in the HTML tags referenced in the Web page, inline objects (such as Flash), IFRAME, and so on is loaded and rambling.

In general, it is a bit late to execute a program when all the elements of a Web page are loaded, because before that, the user can click on the operation page to jump off the control of our program. So, we almost all put the program in $ (document). Read (function () {...}) (That is, the $ (function () {...})). and $ (window). Load (FN) is appropriate to perform actions that you want to wait for all of the files or elements to be loaded, for example, to check the length of the file.

Binding the load's handler function before the element is fully loaded will trigger the load after he has finished loading. If you bind later, it will never be triggered. So do not bind the Load event in $ (document). Ready (), because jquery binds the Load event after all the DOM loads have been completed.

The full format for calling the Load method is: Load (URL, [data], [callback]),

which

URL: Refers to the address of the file to be imported.
Data: Optional parameters, because load can not only import static HTML files, but also import dynamic scripts, such as PHP tutorial files, so to import the dynamic file, we can put the parameters to pass here.
Callback: optional parameter; is another function that is executed after the Load method is invoked and the server responds.
One: How to use Data

1. Load a php file, the PHP file does not contain the pass parameter $ ("#myid"). Load ("test.php");

Import test.php Run results in an element with ID #myid
2. Load a PHP file that contains a pass parameter

$ ("#myid"). Load ("test.php", {"name": "Adam"});

The imported PHP file contains a pass-through parameter, similar to the following: Test.php?name=adam
3. Load a PHP file that contains multiple pass parameters. Note: The parameters are separated by commas

$ ("#myid"). Load ("test.php", {"name": "Adam", "Site": "61dh.com"});

The imported PHP file contains a pass-through parameter, similar to the following: test.php?name=adam&site=61dh.com
4. Load a php file, the php file with an array as the passing parameters

$ ("#myid"). Load ("test.php", {' myinfo[] ', ["Adam", "61dh.com"]});

The imported PHP file contains an array pass parameter.

Ready method

Simple Way
$ (document). Ready (function () {
Writing code
})
The shorthand method is
$ (function () {
Writing code
})
In addition, $ (document) can also be abbreviated to $ (). When $ () has no parameters, the default argument is "document", so it can be abbreviated as:
$ (). Ready (function () {
Writing code
})
3 different ways to function.