每个jQuery开发者都亟需知道的5个小技巧

JQuery是个不错的框架，以下总结了5个每个网站开发者都应该知道的小技巧：

1.禁用右键菜单

$
(

document)

.ready

(

function

(

)

{


    $(

document)

.bind

(

"contextmenu"

,

function

(

e)

{


        return

 false

;


    }

)

;


}

)

;

2.让字体闪烁

jQuery.
fn

.flash

 =

 function

(

 color,

 duration )


{


    var

 current =

 this

.css

(

 'color'

 )

;


    this

.animate

(

 {

 color:

 'rgb('

 +

 color +

 ')'

 }

,

 duration /

 2 )

;


    this

.animate

(

 {

 color:

 current }

,

 duration /

 2 )

;


}


?
$(

 '#someid'

 )

.flash

(

 '255,0,0'

,

 1000 )

;

3.准备文档替换方案

$
(

function

(

)

{


	//document is ready do something


}

)

;

4.检测browser

// Safari


if

(

 $.browser

.safari

 )


{


//do something


}


?
//Above IE6


if

 (

$.browser

.msie

 &

amp;&

amp;

 $.browser

.version

 &

gt;

 6

 )


{


//do something


}


?
// IE6 and below


if

 (

$.browser

.msie

 &

amp;&

amp;

 $.browser

.version

 &

lt;=

 6

 )

  {

 //do something } // Firefox 2 and above if ($.browser.mozilla && $.browser.version >= "1.8" )


{


//do something


}

5.检查存在的元素

if

 (

$(

"#someDiv"

)

.length

)

 {


    //yes it does ,do something


}