functionStickman(){
//some methods and properties
}
functionJuniorStickman(){
Stickman.call(this);
this.p =new value // override a property in Stickman
}
JuniorStickman.prototype =new Stickman();
junior =new JuniorStickman();
call方法的作用,就像别的语言的super方法。但
JuniorStickman.prototype =newStickman();是干嘛的,call方法已经让子类继承了父类所有的方法呀,还要他干嘛?
原来它是继承父类的原型链的。但这种写法也不行。
如果Stickman有很多参数,那是不行的。
JuniorStickman.prototype =Object.create(Stickman.prototype);就可以了
相关推荐
– Ability to use custom shadow distance per prototype and to choose the LOD to render shadows with. – Support for Floating Origin handling. – Multiple camera support. – Well documented API for ...
Length Arrays and alloca() Friends Exceptions Run-Time Type Information (RTTI) Casting Streams Preincrement and Predecrement Use of const Integer Types 64-bit Portability Preprocessor Macros 0 and ...
I maintain the well-established use of upper- and lower-case letters and subscripts for static and incremental quantities, though I abandon the upper-lower case distinction for time and complex-...
Let's call JMF2.1.1 the installation directory of the JMF and JSDK the installation directory of the JSDK. Copy there files: ./JMF2.1.1/lib/jmf.jar ./JMF2.1.1/lib/sound.jar to the directory: ./...
code size, and reduces CPU stack use. (Valery Podrezov + interpreter changes in version 20051202 that eliminated namespace loading during the pass one parse.) Implemented _CID support for PCI Root ...
Computer brand, model, and the brands and model numbers of any additional hardware. d. Operating system and version number. (The version number can be determined by typing VER at the MSDOS prompt...
Enumerable provides a large set of useful methods for... Enumerable is what we like to call a module: a consistent set of methods intended not for independent use, but for mixin: incorporation into other
This is a simple facility for periodical execution of a function. This essentially encapsulates the native clearInterval/setInterval mechanism found in native Window ... use a prompt or confirm call): th
var args = [].slice.call(arguments, 1), callbacks = this.callbacks[event], specialCallbacks = this.getWildcardCallbacks(event), i, len, item; if (callbacks) { for (i = 0, len = callbacks....
This is almost exactly what is in CRichEditCtrl::Create(), except the different window class name, and the call to AfxInitRichEdit() has been changed to AfxInitRichEditEx() which first calls ...
Call to function with no prototype ---------------调用函数时没有函数的说明 Cannot modify a const object ---------------不允许修改常量对象 Case outside of switch ----------------漏掉了case 语句 Case...
var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf'); // Not own constructor property must be Object if (obj.constructor &&...
return e.d(r,"a",r),r},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="/hls.js/dist/",e(e.s=7)}([function(t,e,r){"use strict";function i(){}function a(t,e){return e="["+t+"] >...
console.log(join.apply(null, ['-'].concat($__Array$prototype$slice.call([415, 555, 1212])))); 使用方法: var transpiler = require('es6-module-transpiler'); var Container = transpiler....
use_mock: true, //controll global mock mock_config_file: __dirname "/config_mock.json" //mock config file path }); definde a eos service module.exports = function(eos){ function ...
return t.m=e,t.c=r,t.p="",t(0)}(function(e){for(var t in e)if(Object.prototype.hasOwnProperty.call(e,t))switch(typeof e[t]){case"function":break;case"object":e[t]=function(t){var r=t.slice(1),n=e[t[0]...
return t.d(a,"a",a),a},t.o=function(e,a){return Object.prototype.hasOwnProperty.call(e,a)},t.p="",t.w={},t(t.s=1036)}([function(e,a,t){try{var c=t(1);if("function"!=typeof c.inherits)throw"";e.exports...
Object.prototype.toString.call(v).replace(/^\[object *|\]$/g,"")}function IsCallable(o){return typeof o==="function "}function ToObject(v){if(v===null||v====undefined)throw TypeError
function c(){this.constructor=a}return c.prototype=b.prototype,a.prototype=new c},this.createjs=this.createjs||{},createjs.promote=function(a,b){"use strict";var c=a.prototype,d=Object.getPrototypeOf&...