for var key in object

The code is as follows Copy Code var myclass= (function (name) {var target={Name:name,Init:function (age) {This.age=age;}};Target.init.prototype=target;target.init.position= ' POSITION ';var myclass=target.init;return MyClass;}) ('

var,Object, the difference between the dynamic and the use of the reading directory: I. Why are they three two. The reason to be able to assign any value three. Use of dynamic Four. Considerations for using dynamic compare these three reasons

Delete the key and javascriptobject in the middle of a Javascript Object This is not the case either. Go back to farming and you will Copy codeThe Code is as follows:Delete thisIsObject [key]OrDelete thisIsObject. key By the way, let's talk about

Http://www.cnblogs.com/Mainz/archive/2011/03/10/1980060.html 1: Dynamic a = 10; 2: a = a + 10; 3: Console.WriteLine (A.gettype ());This code outputs System.Int32, and the second line does not require a type conversion because the type is

Shift is a collection variable. Type tshiftstate = set of (Ssshift, Ssalt, Ssctrl, Ssleft, Ssright, Ssmiddle, ssdouble), which means tshiftstate, Ssshift, Ssctrl, Ssleft (left mouse button), ssright (right mouse button), Ssmiddle (middle mouse

Explain the Object in Javascript, javascriptobject Objects are a common type in javascript, and all objects in javascript are inherited from Object objects. Although we usually simply use Object objects to store data and do not use many other

In JavaScript, all objects except the five primitive types (numbers, strings, Boolean values, null, and undefined) are objects. Therefore, I don't know how to continue learning objects? This article will share with you the in-depth study and summary

Object is a type that we use frequently in JavaScript, and all objects in JS are inherited from object objects. Although we usually simply use object objects to store data and not use too many other features, object objects actually contain many

Many students have ignored the fact that JavaScript can also do object-oriented programming for quite a long time. On the one hand, the various page interactions that we have implemented in the introductory phase are very logical to be solved with

Three variable declaration methods for VAR let const in JavaScript1. var①var indicates that a variable is declared and can be initialized at the same time .② the scope of a variable declared with the Var statement is the context of the current