随笔分类 - Javascript
摘要：Sometime, use can rewrite the toString , valueOf method to make those function more useful: For exmaple, we can make valueOf() function to calcualte t
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posted @ 2014-08-11 02:53
Zhentiw
摘要：function Fencepost (x, y, postNum){ this.x = x; this.y = y; this.postNum = postNum; this.connectionsTo = []; } Fencepost.prototype = { sendRopeTo: fun
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posted @ 2014-08-10 17:59
Zhentiw
摘要：You can add prototype to any object in Jacascript likes Object, Array, String... prototype 有继承的作用，比如说我有一个String的对象，我可以访问Object的prototype hasPrototype(
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posted @ 2014-08-10 02:32
Zhentiw
摘要：var vehicle1 = {type: "Motorboat", capacity: 6, storedAt: "Ammunition Depot"}; var vehicle2 = {type: "Jet Ski", capacity: 1, storedAt: "Reef Dock"}; v
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posted @ 2014-08-08 00:31
Zhentiw
摘要：First, memory is set aside for all necessary variables and declared functions. Function expression never got hosited in Javascirpt. Therefore, you can
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posted @ 2014-08-05 16:21
Zhentiw
摘要：They’ve got a problem with their existing code, which tries to use a closure. Check it out: function assignLaser( shark, sharkList ){ var stationAssig
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posted @ 2014-08-04 20:57
Zhentiw
摘要：function buildCoveTicketMarker(transport){ var passengerNumber = 0; return function(name){ passengerNumber++; alert("Ticket via the " +transport+ "Wel
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posted @ 2014-08-04 20:15
Zhentiw
摘要：Returning a function from a function, complete with variables from an external scope, is called a closure. The entire contents of one of these inner f
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posted @ 2014-08-04 18:33
Zhentiw
摘要：The Poplar Puzzle-makers weren’t too impressed. They barely noticed your simple and beautiful array of functions, and were only sort of “meh” on the u
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posted @ 2014-08-02 20:52
Zhentiw
摘要：Now the people at Poplar Puzzles would like you to treat an array of functions like a Queue, passing the result of each function into the next until t
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posted @ 2014-08-02 20:29
Zhentiw
摘要：var parkRides = [["Birch Bumpers", 40], ["Pines Plunge", 55], ["Cedar Coaster", 20], ["Ferris Wheel of Firs". 90]]; var fastPassQueus = ["Cedar Coaste
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posted @ 2014-08-02 19:50
Zhentiw
摘要：As an example, if Jason was riding the roller coaster (and when isn’t he), your goal would be to change his cell from ["Jason", "Millhouse"] to just "
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posted @ 2014-08-02 18:00
Zhentiw
摘要：Inside the Haunted Hickory House file, developers for the Forest of Function Expressions Theme Park have created a declared function called forestFrig
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posted @ 2014-08-02 17:23
Zhentiw
摘要：//This will load the code into the memory no matter //you call it or not function diffOfSquares(a,b){ return a*a -b*b; } //This code will only load in
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posted @ 2014-08-02 16:37
Zhentiw
摘要：思想：创建三个类，一个Boss类，管理Worker的分配，统计worker和Task的个数。Worker类，管理这个worker自己的Task。Task类。//Boss类function Boss(){ this.workerList = new Array(); this.totalW...
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posted @ 2013-05-30 06:12
Zhentiw
摘要：组合使用构造函数模式和原型模式（优化方案） 方式： 构造函数模式用于定义实例属性，而原型模式用于定义方法和共享属性。 代码：要求编写一段程序，实现统计人数，给每个人分配姓名，年龄，工作等属性，并且可以给每个人分配好友，并且可以查看好友的信息。 Javascript代码： //构造函数模式用于定义实例
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posted @ 2013-05-30 06:05
Zhentiw
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