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Source: http://www.jb51.net/article/50294.htmJS How to get ul Li iddocument.getElementsByTagName ("Li") [index].idHow do I get the number of LI in ul with JavaScript? document.getElementById (' Myul '). getElementsByTagName (' li '). lengthHTML DOM removechild () methodvar List=document.getelementbyid ("MyList"); List.removechild (List.childnodes[0]);JS Dynamic Add Delete ul node Li and related content
Just read a small example in the node. JS document, which is a small example of writing a Web server with node. jsOn the code (*^▽^*)Helloworld.jsUse node.
First download node. js, decompress it to the E disk, change it to node, then Enter cmd in the menu, and use the cd command to switch to the decompressed directory of nodejs:
Example 1: hello world.
Create a hello. js file in the no
First of all, it is not my client playing griping at everything to play cross-border, and the code is not my writing, but I look for.Directly on the code address, do not want to see the nagging directly download the code is OK.Https://github.com/andygrn/Node.js-File-ServerAfter downloading the code, drag the server.js directly to the Node.exe icon to run, in the browser access http://127.0.0.1:80/can directly connect to the download server.1, why shou
This article teaches you how to use Node traversal of js to find the specific implementation idea of a repeater field. If you are interested, refer to it and hope to help you
Js Section:
The Code is as follows:
Var checkboxs = document. getElementsByTagName ("input ");For (var I = 0; I
{
If (checkboxs [I]. type = "checkbox" checkboxs [I]. checked = tru
= 1337;//Port number5 6Http.createserver ((req, res) = = {//Create Web server 200 Success7Res.writehead, {' Content-type ': ' Text/plain ' });8Res.end (' Hello node.js\n ');9}). Listen (port, hostname, () = {TenConsole.log (' Server running at http://${hostname}:${port}/'); One});The code to build the Web server is already written, and the Web
This article describes how to find jquery's parent and child node. For more information, see jQuery. parent (expr) finds Father's Day points and can pass in expr for filtering, for example, $ ("span "). parent () or $ ("span "). parent (". class ")
JQuery. parents (expr) is similar to jQuery. parents (expr), but it is used to find all ancestor elements, not limited to parent elements.
JQuery. children
A simple node. JS File System (fs) read/write example.In nodejs, you can use the fs (file system) module to perform file I/O operations. API link address: the use of fs File System under the http://nodeapi.ucdok.com/#/api/fs.html instance: 1, the module call declaration: var fs = require ('fs'); var path = require ('path '); fs is the file module, and path is the system path module. 2. You can use the write
The emerging node. js has attracted a lot of developers, providing us with a platform to quickly build high-performance network applications. I also began to gradually invest in node. in the embrace of JS, I encountered some problems and some experience in the process of learning and using. I think it is necessary to w
must be customized,functionsend404 (response) {Response.writehead ($, {"Content-type": "Text/html" }); Response.Write ("); Response.End ();}//send a file to the clientfunctionsendFile (response, FilePath, filecontents) {Response.writehead ($, {"Content-type": Mime.lookup (FilePath)}); Response.End (filecontents);}//This function is exported to the main module using thefunctionservestatic (response, Abspath) {if(Cache[abspath]) {sendFile (response, Abspath, Cache[abspath]); } Else{fs.exists (Abs
This article mainly introduces the implementation code of Node. js simulating Browser file upload. For more information, seeOSChina posted it, and that is mine. Now put it here. The Haha code is as follows: var path = require ("path"); var fs = require ("fs "); var http = require ("http"); // post value payload var getfield = function (field, value) {return 'content-Disposition: form-data; name = "'+ field
just want to do a grunt operation on a JS file, you do not need to create Index.js and Lib folder files, directly put the file in the root directory, and then the Gruntfile.js file in the path to change it.?Appendix 2:How to create a sample gruntfile.
Installing GRUNT-CLI
NPM install-g GRUNT-CLI
?
Install the Windows version of Git.
Create an empty folder.
Navigate to the new fol
Js Section:
Copy codeThe Code is as follows: var checkboxs = document. getElementsByTagName ("input ");
For (var I = 0; I {
If (checkboxs [I]. type = "checkbox" checkboxs [I]. checked = true ){
Var trobj = checkboxs [I]. parentNode. parentNode; // locate the tr node.
If (trobj. rowIndex> 0 ){
Var tdobj = trobj. children;
Var amount = tdobj [3]. children. item (0). value; // find the value of the td
first, establishing a simple Web server involves some basic points of node. JS:1. Request ModuleIn node. JS, the system provides a number of useful modules (you can, of course, write your own modules in JavaScript, which we'll explain in detail later), such as HTTP, URLs, an
When installing the Ghost blog, I need to forward Apache requests to node. js server, in order to get it done quickly, I found some information, copied some configuration, and saw that it could run, so I didn't discuss it again.I don't know why I want to add a ProxyPassReverse.In the rendering of the blog React. js
access is normal, the browser will display Hello world! .node server.jsTip: ctrl+c run with Stop script.At this point a simple example runs successfully, and the following is an analysis of the code.Code AnalysisFirst, server.js node. JS is introduced in http模块 , which provides very low-level HTTP API support. Here yo
when the client requests an HTTP upgrade. function Callback (Request,response,head)Clienterror: Emitted when a client connection socket issues an error. function callback (error,socket) {}To start the HTTP server, first create the object using the Createserver ([Requestlistener]) method and then pass through Listen (Port,[hostname],[backlog],[callback]).Port: PortsHostname: Host NameBacklog (Backlog): Specifies the maximum number of pending connectio
Zookeeper
Concept: Node. js provides the http module. It encapsulates an efficient HTTP server and a simple HTTP client.Http. server is an event-based HTTP server. It is implemented using C ++ internally. Interfaces are encapsulated by JavaScript.Http. request is an HTTP cli
node. JS creates an HTTP serverIf we use PHP to write back-end code, we need an Apache or Nginx http server, with MOD_PHP5 modules and php-cgi.From this perspective, the entire "Receive HTTP request and provide WEB page" requirement does not need PHP to handle at all.But for node.
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