Jquery Study Notes (1)

Basic knowledge:
<Button onclick = "... "> </Button> and other things. js is written between Copy codeThe Code is as follows:
$ (Document). ready (funciton (){
...
});

Of course, it will be simpler:
Copy codeThe Code is as follows:
$ (Function (){
...
});

So this is my first Jquery script.
$ (Function () {alert ("I'm ready ")});
Jquery object methods and DOM object methods cannot be used together. For example, $ ("# id"). innerHTML or document. getElementById ("id" ).html () is incorrect.
Conversion between a Jquery object and a DOM object. The object returned by the Jquery selector is actually returned in the form of an object array. Therefore, you can use an array subscript for conversion. You can also use the get (index) method in Jquery.
Copy codeThe Code is as follows:
$ (Function (){
Var $ p = $ ("p ");
Var p = $ p [0]; // var p = $ p. get (0 );
Alert (p. innerHTML );
});

You can also convert a DOM object to a Jquery object.
Copy codeThe Code is as follows:
Var p = document. getElementById ("p ");
Var $ p = $ (p );