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jquery Extension Plugin method

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Analysis Plugin Jquery.countdown.js

1(function($) {2$.fn.countdown =function(options) {3         //Default Options4         varDefaults = {5Attrname: ' Data-diff ',6Tmpl: ' <span class= "hour" >%{h}</span> hours <span class= "minute" >%{m}</span> minutes <span class= " Second ">%{s}</span> s",7End: ' Closed ',8Afterend:NULL9         };Ten  one Console.log (options); aOptions =$.extend (defaults, options); - Console.log (options); -          the  -         //Trim Zero -         functionTrimzero (str) { -             returnparseint (str.replace (/^0/g, ")); +         } -         //Convert string to time +         functiongetdifftime (str) { a             varm; at             if((m =/^ (\d{4}) [^\d]+ (\d{1,2}) [^\d]+ (\d{1,2}) \s+ (\d{2}) [^\d]+ (\d{1,2}) [^\d]+ (\d{1,2}) $/. exec (str))) { -                 varYear = Trimzero (m[1]), -month = Trimzero (m[2])-1, -Day = Trimzero (m[3]), -hour = Trimzero (m[4]), -minute = Trimzero (m[5]), inSecond = Trimzero (m[6]); -                 returnMath.floor ((NewDate (year, month, day, hour, minute, second). getTime ()-NewDate (). GetTime ())/1000); to             } +             returnparseint (str); -         } the         //format time *         functionformat (diff) { $             varTmpl =options.tmpl, day, hour, minute, second;Panax NotoginsengDay =/%\{d\}/.test (tmpl)? Math.floor (diff/86400): 0; -hour = Math.floor ((diff-day * 86400)/3600); theminute = Math.floor ((diff-day * 86400-hour * 3600)/60); +Second = Diff-day * 86400-hour * 3600-minute * 60; aTmpl = Tmpl.replace (/%\{d\}/ig, Day) the. Replace (/%\{h\}/ig, Hour) +. Replace (/%\{m\}/ig, Minute) -. Replace (/%\{s\}/ig, second); $             returntmpl; $         } -         //Main -         return  this. each (function() { the             varEl = this, -diff =getdifftime ($ (el). attr (options.attrname));Wuyi             functionUpdate () { the                 if(diff <= 0) { - $ (el). HTML (options.end); wu                     if(options.afterend) { - options.afterend (); about                     } $                     return; -                 } - $ (el). HTML (format (diff)); -SetTimeout (function() { adiff--; + Update (); the}, 1000); -             } $ Update (); the         }); the     }; the}) (jQuery);
1, $.fn.countdown to extend the jquery method, the function is named Countdown




3. Defaults = {
Attrname: ' Data-diff ',
Tmpl: ' <span class= "hour" >%{h}</span> hours <span class= "minute" >%{m}</span> minutes <span class= " Second ">%{s}</span> s",
End: ' Closed ',
Afterend:null
};






The Key-value pair in Defaluts provides the property, which is equivalent to the parameter of the member function in the class.




4. Options = $.extend (defaults, options); merges the options values into defaults and returns the merge results


5, return This.each (function());  Gets the ID or name value of the Web page and modifies the function action


Web page Invocation sample:


<!DOCTYPE HTML><HTML>    <Head>        <MetaCharSet= "utf-8" />        <title>Countdown Demo</title>        <style>        </style>        <Scriptsrc= "http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></Script>        <Scriptsrc= "jquery.countdown.js"></Script>        <Script>            $(function() {                $('. J_countdown1'). Countdown (); $('. J_COUNTDOWN2'). Countdown ({tmpl:'<span>%{d}</span> days <span>%{h}</span> hours <span>%{m}</span> minute <span>%{s }</span> sec'                }); $('. J_countdown3'). Countdown ({tmpl:'<span>%{d}</span> days, <span>%{h}</span> hours, <span>%{m}</span> points, <span> %{s}</span> sec'                });        }); </Script>    </Head>    <Body>        <Divclass= "j_countdown1"Data-diff= "ten"></Div>        <Divclass= "j_countdown1"Data-diff= "the "></Div>        <Divclass= "j_countdown1"Data-diff= "3610"></Div>        <Divclass= "j_countdown1"Data-diff= "86410"></Div>        <Divclass= "j_countdown2"Data-diff= "21234567890"></Div>        <Divclass= "j_countdown3"Data-diff= "21234567890"></Div>    </Body></HTML>
















jquery Extension Plugin method



                

                    
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