JavaScript

This article describes the canvas of JAVASCRIPT+HTML5 to realize the effect of 3D rose Flower of Tanabata Valentine's Day. Share to everyone for your reference. Specifically as follows: The following rose draws are used to canvas HTML 5, so your

See JS Source: Copy Code code as follows: Zoom in and zoom out control var photosize = { zoom:0,//Zoom rate count:0,//Zoom times cpu:0,//Current zoom times value Elem: "",//Picture node photowidth:0,//Picture initial

At this point check the source code can be found at the top of the page was added a sentence But this code doesn't always appear. I thought the server was attacked or the virus was in the server. Checked all pages and related files that have

Date.prototype.isLeapYear Judge Leap Year Date.prototype.Format Date format DATE.PROTOTYPE.DATEADD Date Calculation Date.prototype.DateDiff Comparison Date Difference Date.prototype.toString Date-turn string Date.prototype.toArray date split into

What is a variable? A variable is a container for storing information Declaration of variables Grammar: var variable name Variable name = value; Variable to declare and then assign the value Variables can be assigned repeatedly

Get HTML content in editor Copy Code code as follows: function Geteditorhtmlcontents (editorname) { var oeditor = fckeditorapi.getinstance (editorname); Return (Oeditor.getxhtml (true)); } Get text in Editor Copy Code code

What I want to say today is, how to write classes and static classes in JavaScript, this is my usual method, you can also have more convenient, can also send comments to communicate with you. First of all, class, in a class we will have the

Push Method Adds a new element to an array and returns the new length value of the array. Arrayobj.push ([Item1 [item2 [...] [Itemn]]]) Parameters Arrayobj required option. An Array object. Item, Item2,... itemn option. The new element of

JavaScript Form Validation Regular expression encyclopedia Using regular expressions to determine whether the Arabic numerals are 0-9 Copy Code code as follows: function Regisdigit (fdata) { var reg = new RegExp ("^[0-9]$");

We've learned that variables are numbers, strings, and object parameters. There is also an important part of javascript: arrays. An array is a list. Various lists such as lists, URLs, and color lists can be stored in an array. Here we generate an

Effect Demo: http://www.never-online.net/tutorial/js/upload/ Javascript & DHTML Instance Programming (tutorials) (iii), primary instances-uploading file control instances The above chapter basically has to explain the basic knowledge to say some,

In fact, online writing JavaScript date format of a lot of blog, generally looked at, are not bad. The only regret is that the function has not been optimized for performance.As the saying goes: Do not repeat the wheel. Google found a relatively

Re-understanding of object-orientedin order to illustrate that JavaScript is a thorough object-oriented language, it is necessary to start from the object-oriented concept to explore some of the object-oriented concepts: All things are

I am very excited about the new features discussed today, because this feature is the most magical feature of ES6. What does this "magic" mean? For beginners, this feature is completely different from the previous JS, and even some obscure. In a

KeyCode 0 = KeyCode 1 = KeyCode 2 = KeyCode 3 = KeyCode 4 = KeyCode 5 = KeyCode 6 = KeyCode 7 = KeyCode 8 = BackSpace BackSpace KeyCode 9 = Tab tab KeyCode 10 = KeyCode 11 = KeyCode = Clear KeyCode = Enter KeyCode 14 = KeyCode 15 = KeyCode = shift_l

Using the sample result = expression1 >>> expression2 Where result is any variable. Expression1 is any expression. Expression2 is any expression. Description of unsigned right-shift operators in JavaScript The >>> operator shifts the

JavaScript in the timer everyone basically in peacetime development have met it, but how many people to deeply understand the principle of it? Here we will analyze the implementation of the timer principle. I. Reserve knowledge In our project, we

First, error implementation Many people may directly use the equal sign to assign a value: Copy Code code as follows: var array1 = new Array ("1", "2", "3"); var array2; Array2 = array1; array1.length = 0; alert (array2);

This method returns the tangent value of a number. The Tan method returns the tangent of the indicated angle.Grammar Math.tan (x); The following are the details of the parameters: X: A number that represents radians in degrees

JQuery implements drag-and-drop editable module function code. jquery drag-and-drop Before sharing the implementation code, we will show you the following: The specific implementation code is as follows: Index.html iNettuts-Welcome!