javascript-Single-Case mode

Single-mode notes
Also known as the singleton mode, only allows the object class to be instantiated once
Usage:
1. Namespaces: Use an object to plan a namespace, organize properties and methods on managed objects
2. Static variable management: Let the created function execute once, save the static variable within the created object through the accessor, and place the object as a singleton in global space as a static variable singleton object for others to use
3. Lazy Singleton: Sometimes it takes a singleton to create a delay, and this form of deferred creation is called "Lazy creation".
Code:

1             //name Space2             varJt = {3                 //managing static Variables4Conf: (function(){5                     varconf = {6max_num:100,7Min_num:1,8count:10009                     }Ten                     return { OneGet:function(name) { A                            returnConf[name]? Conf[name]:NULL; -                         } -                     } the                 })(), -                 //Lazy Loading single case -Lazysingle: (function(){ -                     var_instance =NULL; +                     functionSingle () { -                        return { +Publicmethod:function(){}, APublicproperty: ' 1.0 ' at                         } -                     } -                     return function(){ -                         if(!_instance) { -_instance=Single (); -                         } in                     return_instance; -                     } to                 })() +}

Static variable Testing

1             var maxnum=jt.conf.get (' max_num '); 2             Console.log (Maxnum);

Lazy single-Case test

1             Console.log (Jt.lazysingle (). Publicproperty);

Console Display Results

javascript-Single-Case mode