120 days of 1200 hours of pass-through for junior students. NET (10) about jquery (last animated effect *)

1,$ (': Radio '). Val ([' 1 ', ' 2 ', ' 3 ']);//special notation, the value of 1 2 3 is selected.

2,math.abs (len) Take absolute value

3, button highlighting, is generally configured two buttons, a normal, a high brightness (such as Normal style button coordinates of 100,100. The Highlight style button coordinates 120,120), when the mouse passes, JS changes the CSS background-position:100-100; dynamic becomes 120-120. (As for why when you are in a lot of sites to save a small icon, but saved as a large picture, is because the website icon shows the pain of background-position this method)

4,

Effect of text being selected by mouse
1. Extending jquery
$.fn.selectrange = function (start, end) {
var curobj = $ (this). Get (0);
if (!curobj) return;
else if (Curobj.setselectionrange) {
Curobj.focus (); Curobj.setselectionrange (start, end);
}/* WebKit */
else if (Curobj.createtextrange) {
var range = Curobj.createtextrange ();
Range.collapse (TRUE);
Range.moveend (' character ', end);
Range.movestart (' character ', start);
Range.Select ();
}/* IE */
else if (Curobj.selectionstart) {
Curobj.selectionstart = start;
Curobj.selectionend = end;
}
};

Call the Selectrange method directly when calling
. Selectrange (1,7);
Default selected text start to end loading is selected

5,javascript:void (0); no jump

6,$ (This). Parent (). remove ();

7,

Determine if the layer already exists
if ($ (' #dv1 '). length==0) {};

8,

. Hover ()//mouse entry, mouse away
$ (' #btn '). Hover (function () {
$ (this). CSS (' background-color ', ' red ');
}, function () {
$ (this). CSS (' Background-color ', ');
});

9,

Toggle event, toggle ();
$ (' #btn '). Toggle (function () {

}, function () {

}, function () {

}, function () {

});

10, 01: Return False on the inner layer, can prevent event bubbling (recommended)

02:function (e)

E.stoppropagation ();
(Standard usage)

$ (' btn '). Click (function (e) {

if (!confirm (' Go not ')) {
E.prevrntdefault ();//Block Event
}
});

11,

Value is passed when registering an event
$ (' #btn '). Click ({' name ': ' Small Black '},function (evt) {
alert (evt.data.name);
});

12,

Delay hiding and showing
$ (function () {
$ (' #btnHide '). Click (function () {
$ (' div '). Hide (1000);
});
$ (' #btnShow '). Click (function () {
$ (' div '). Show (1000);
});
});

13,*************** animation effects

First out of the document flow
$ (' img '). Animate
({"Top": "550px", "left": "10px", "width": "50px", "height": "50px"},1500)//This is the final result of the picture
; Gradients fall from top to top 550px and become smaller
Animation effects

120 days of 1200 hours of pass-through for junior students. NET (10) about jquery (last animated effect *)