标签：query over eth on() api dial type com err
https://learn.jquery.com/jquery-ui/widget-factory/extending-widgets/
https://api.jqueryui.com/jquery.widget/#method-_super
To make the parent‘s methods available, the widget factory provides two methods - _super() and _superApply().
_super() and _superApply() to Access Parents_super() and _superApply() invoke methods of the same name in the parent widget. Refer to the following example. Like the previous one, this example also overrides the open() method to log "open". However, this time _super() is run to invoke dialog‘s open() and open the dialog.
$.widget( "custom.superDialog", $.ui.dialog, { open: function() { console.log( "open" ); // Invoke the parent widget‘s open(). return this._super(); } }); $( "<div>" ).superDialog();
proxiedPrototype[ prop ] = (function() {
var _super = function() {
return base.prototype[ prop ].apply( this, arguments );
},
_superApply = function( args ) {
return base.prototype[ prop ].apply( this, args );
};
return function() {
var __super = this._super,
__superApply = this._superApply,
returnValue;
this._super = _super;
this._superApply = _superApply;
returnValue = value.apply( this, arguments );
this._super = __super;
this._superApply = __superApply;
return returnValue;
};
})();
//在传入的ui原型中有方法调用this._super 和this.__superApply会调用到base上（最基类上）的方法 127 $.each(prototype, function(prop, value) { 128 //如果val不是function 则直接给对象赋值字符串 129 if (!$.isFunction(value)) { 130 proxiedPrototype[prop] = value; 131 return; 132 } 133 //如果val是function 134 proxiedPrototype[prop] = (function() { 135 //两种调用父类函数的方法 136 var _super = function() { 137 //将当期实例调用父类的方法 138 return base.prototype[prop].apply(this, arguments); 139 }, 140 _superApply = function(args) { 141 return base.prototype[prop].apply(this, args); 142 }; 143 return function() { 144 var __super = this._super, 145 __superApply = this._superApply, 146 returnValue; 147 // console.log(prop, value,this,this._super,‘===‘) 148 // debugger; 149 //在这里调用父类的函数 150 this._super = _super; 151 this._superApply = _superApply; 152 153 returnValue = value.apply(this, arguments); 154 155 this._super = __super; 156 this._superApply = __superApply; 157 // console.log(this,value,returnValue,prop,‘===‘) 158 return returnValue; 159 }; 160 })(); 161 });
标签：query over eth on() api dial type com err
原文地址：https://www.cnblogs.com/chucklu/p/11100549.html
