hulu javascript problem

global scope, so print the regional scope. Such analysis is in C # java, completely correct. But here the analysis is really wrong. This explains the problem before we look at a problem. This statement is important: Global variables are always defined in the program. A local variable is always defined within the function body in which it is declared and its nested functions. If you are engaged in high-

Different programming languages have multiple types of loop statements with similar functions. Of course, there are some differences in usage scenarios, such as for, forin, and forin, it does not need to know the object attribute length in advance. Generally, in JavaScript, there is no difference between the for and for in array traversal results, its cyclic variable I is an array index starting from 0 (for in, if it traverses a non-array object attri

bound object.6. Event BindingThe This in the event method should be the most confusing place, and most of the errors originate from this.binding on the page element Run result analysis: The above 2 kinds of common event binding methods, the event binding on the page element (onclick= "Btclick ();" ), this is the global object, and in JS it is bound to the elment element of the binding event except for the Attachevent bound event method (this point is the global object).Resources:Http://www.qdf

Since upgrading from MyEclipse to 7.0, project build is always slow, showing validating those js,html files. No matter how I adjust Windows > Preference > MyEclipse > Validation or manage validation, it's useless.My company's computer is Core2 Duo CPU T7250 @ 2.00GHz CPU, every time the machine is very slow validatingI created a new project and added a Web capabilities to track the. projet file in this process, and finally found out where the validation was defined when the build was made. It se

A C + + class:Class Ctest:public Qobject{Public Slots:Qobjectlist GetList () { return m_listobjects; } Private Qobjectlist m_listobjects; }JS Calling code:document.write (Test.getlist ());The error is prompted when JavaScript calls the GetList method of the class: + Message Error:cannot call GetList (): Unknown type ' qobjectlist ' How to resolve:At the beginning of the program if a line of code, registered under the qobj

1. Use Nodejs to run JavaScript in sublime text Download and install Nodejs In sublime text new build System:tools->build system->new build system ..., enter the code: {"cmd": ["Node", "$file"],"Selector": "Source.js"} Save as a new file, arbitrarily named, Eg:node. Restart Sublime text and select Build System->node. When debugging JS, press F7, or ctr+b, you can run JS 2. Solve console No output problemAfter I have confi

JavaScript Modify the IMG tag src, in the IE6 below the picture to modify the normal, but in IE7 and Firefox below but do not refresh, there is a solution, we can refer to the following1. When clicked a button, the picture domain picture changes the code as follows: Unclear 2. Description "Servlet/createvalidatenum" is a Java-written servlet. The servlet is printing out a picture of 3. The problems that appear in the IE6 below are modified normally

This article illustrates the problem-solving method of JavaScript Hanoi Tower. Share to everyone for your reference. The implementation methods are as follows: I hope this article will help you with your JavaScript programming.

+ = S2.split (".") [1].length} catch (e) {}Return number (S1.replace (".", "")) * Number (S2.replace (".", ""))/Math.pow (M)}Adding a Mul method to the number type is more convenient to call.Number.prototype.mul = function (ARG) {Return Accmul (ARG, this);} The precision problem of additional method The code is as follows Copy Code /Description: JavaScript addition re

;Console.log (this);}var obj = {Name: ' qiutc2222222 '};var Person2 = person.bind (obj, ' qiutc111111 ');var p = new Person2 (' QIUTC ');person {name: "qiutc111111"}As you can see, although specifying this does not work, the incoming parameters still work;Specify this for the arrow functionLet's define a global arrow function, so this one in the arrow function will necessarily point to the global object, and if you change this with the call method: var Afoo = (a) + = {Console.log (a);Console.log

In the system, javascript open window is used in some places. For example, you can open a window in fixed mode to prevent other operations. Parameters:Copy codeThe Code is as follows:Parameter | value range | descriptionAlwaysLowered | yes/no | specifies that the window is hidden behind all windowsAlwaysRaised | yes/no | specify that the window is suspended above all windowsDepended | yes/no | whether to close the parent window at the same timeDirecto

problem In AJAX applications, calling XMLHttpRequest is a common case. In particular, client-centric AJAX applications, various operations that need to obtain data from the server are completed by XHR asynchronous calls. However, in single-threaded JavaScript programming, the code style of XHR asynchronous invocation is really out of tune with the usual JavaScript