JavaScript

Highlights of node. js project development issues (occasionally updated, add problems encountered during the development process at any time) 1. How do I define general headers and tails when using express to develop websites?Solution 1: add an

Modify the JS Code of the pull hook network and skip mobile phone number detection. I am working in Singapore and want to return to China for development in the near future. I have heard of raoku. I will first deliver my resume there.When I first

Comparison and Application of JS template engine BaiduTemplate and ArtTemplateRecently, I used the JS template engine to render HTML. The JS template engine was known to be used for projects last year, but it has never been used. It only stays at

We usually determine that the js image size isUse the images object, and then use attr to obtain the image address for judgment.Here are some examples.The simplest method: Copy codeThe Code is as follows:Var img = new Image ();Img. src = $ ('# tlogo'

1. JavaScript is case sensitive;2. If the declared variable does not write var, it declares the global variable. Any function that is not a method is a global variable, and this in it points to the window;3.% operator, evaluate the remainder, retain

First, define the array and initialize the method:Var myArray = new Array (1, 3.1415, "love"); // note that elements in the myArray Array are not only elements of the same data type, but can have an integer or floating point type, string and so on.

Situation OneCopy codeThe Code is as follows:Situation TwoCopy codeThe Code is as follows:Note: you do not need to declare the variables before using them. Such variables are considered as "global variables", but are rarely used in this way. About

JQuery implements the tab function. First, build the interface. The navigation header tab_menu and the content tab_box are available. The effect is that, after clicking, the corresponding content is displayed, and other content is hidden. At the

When you focus on the email address text box, the text "enter email address" in the text box is cleared. :Copy codeThe Code is as follows:

The study found that there is a big difference between the two. I don't know what the difference is from English. The results are as follows:Test OS: ubuntuTest Browser: chromeTest Case 1Console. log ()Error ReferenceError: a is not definedTest Case

1. instance source codeCopy codeThe Code is as follows: val () in jQuery basketball football volleyball 2. The result is as follows:(1) Select AllPop-up "basketball, football, and volleyball"(2) Selected PartsThe corresponding values are displayed

When a pop-up dialog is made today, the width and height of the parent page are used.Tried several methods, such as document. body. clientWidth, window. screen. width, document. body. after scrollWidth and other methods, I found that none of them

Copy codeThe Code is as follows: Use dom to generate a drop-down list box no region

Copy codeThe Code is as follows:(Function ($ ){$. Fn. autoMail = function (options ){Var autoMail = $ (this );Var _ value = '';Var _ index =-1;Var _ width = autoMail. outerWidth ();Var _ height = autoMail. outerHeight ();Var _ left = autoMail.

I. Reasons for DemandThe following results must be implemented when filling out the form:II. Specific implementationCopy codeThe Code is as follows: no text after clicking the mouse, text after moving the mouse Account:

Colorbox is a very useful plug-in for jquery, with rich functions and a good user experience. Colorbox Official Website: http://www.jacklmoore.com/colorbox/ I encountered a problem when I used colorbox. I did not pay attention to this problem

Var ohtml = '' + ' you have successfully sent a friend application. '+' upload a real avatar. It is easier for a friend to apply for an Avatar. Upload the Avatar! '+' /teacher/editUserAvatar. action "target =" _ blank "> '+' '; $. dialog

The following is a scrolling style. You can query the scrolling content and put it in a div or another container. Here I use The following is the container for scrolling content display. The following is js. query the scrolling display

When downloading files on a webpage, sometimes the file is too large and it takes some time to generate the file. To prevent other operations on the webpage, you can use a div to overwrite the webpage and lock the webpage. function lockScreen() {

Js image scrolling code: untitled document left right The above two a labels are used to control the image rolling trend. The key is the structure of div ul li . The div contains the ul human, and then the img label of the image in