jQuery开发者都需要知道的5个小技巧

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 && $.browser.version > 6 ) 
{ 
//do something 
} 
// IE6 and below 
if ($.browser.msie && $.browser.version <= 6 ) { //do something } // Firefox 2 and above if ($.browser.mozilla && $.browser.version >= "1.8" ) 
{ 
//do something 
}

5.检查存在的元素

if ($("#someDiv").length) { 
//yes it does ,do something 
}