This article mainly introduces node. the js [superAgent] request usage example summarizes the post request, get request, delete request, and put request examples, and recommends them to you. Post request:
The code is as follows:
Request. post ('/api/pet '). End (function (resp, err ){If (resp. body. status === 2
This article mainly introduces Node. examples of simple web page capturing functions implemented by js. This article uses libraries such as PhantomJS and node-phantomjs to implement these functions. For more information, see the following: web page capturing is a well-known technology, however, there are still a lot of complexities. Simple Web crawlers are still
This article mainly introduces a simple node. js server example. This article implements a simple helloworld example and shows how to run this server, for more information, see the following example: hello world.
It seems that the first section of each language tutorial w
This article mainly introduces Node. example of calling the mysql stored procedure in js. this article passes the test in the windows environment. This article also provides examples of creating a database, inputting data, creating a stored procedure, and calling a stored procedure, for more information, see the example
parameters: Sigparameter and Authorization. These two need to be self-explanatory, according to the documentation:
2. Sigparameter is the rest API Validation parameter
url must have the sig parameter, for example: SIG=ABCDEFG.
· use MD5 encryption (account ID + account Authorization token + timestamp). Where the account ID and account aut
Use q. js in node. js to implement api promise
Here we will look at how to use q. js to implement node api promise.
I. Everything starts with install
The Code is as follows:
Npm insta
Document directory
Use setTimeout to delay function execution
Use clearTimeout to cancel an execution plan
Develop and cancel repeated execution plans for Functions
Use process. nextTick to delay function execution to the next round of the event Loop
Congestion event Loop
Exit event Loop
Use setTimeout instead of setInterval to ensure the serialization of function execution
For the list of articles in this series and the translation progress, see
node. JS v4.4.7 Documentation (Official document)BufferPrior TypedArray to the introduction of ECMAScript (ES6), the JavaScript language had no mechanism for reading or Manip ulating streams of binary data (binary). The class is introduced as part of the Buffer node. js API
Http request client example (request client) in Node. js, node. jsrequest
Node. JS has a request module that can easily capture webpage content. The simplest example is as follows:
var
//Descriptionthe Node API version is v0.10.31. Chinese Reference: http://nodeapi.ucdok.com/#/api/this Keweibo main note. Directory about this document 0 stability Indicators 0 JSON output About this documentThe purpose of this document is to interpret the node. JS
something you should worry about unless you record huge amounts of data.Console.log ([data], [...])Prints another line to the standard output. This function can use printf () to take multiple parameters in a similar way. For example:1 console.log (' Count:%d ', count);If the first string argument is not a formatted string, Util.inspect is applied to each parameter. See Util.format ()for more information.In fact, when encountering the first parameter
This article has been published in my blog.Terminal (terminal)Speaking of the use of the Linux system is generally known to the elder brother, I understand: Similar to putty these SSH tools through the software to implement remote control host, for our users, it will display information and can receive information and processing, this is the terminal. As for what pseudo-terminal should be software implementation so that a set of input can support multiple soft terminals.There are 3 terminal modu
Example of calling the mysql stored procedure in Node. js, node. jsmysql
The test passed only in windows, but not in linux. If you have any questions, please email me ~
1. Install node. js and mysql. Click here (search by yourself
: '/submit' , method: 'post' }; var Req = http. request (options, function (RES) {res. setencoding ( 'utf8' ); Res. on ( 'data', function (chunk) {console. log ( 'body: '+ chunk) ;}); req. write ( "my data" ); req. write ( "more of my data" ); req. end ();
In the above example, we use the req. Write () method to describe the data we want to send to the server, and finally use Req. End () to initialize and send a request. The res in the C
Document directory
Create a buffer
Obtain and set buffered data
Split and buffer data
Copy buffered data
Decodes buffered data
For the list of articles in this series and the translation progress, see Node. js advanced programming: using Javascript to build scalable applications (〇)
This article corresponds to the original article Part 2 Chapter 4: Node
(writablestream)
reads data from Readablestream and sends it to Writablestream. When writablestream.write (data) returns false,readablestream pauses until writablestream occurs Drain event. Callback has an error as its only parameter and is called when the Writablestream is closed or when an error occurs. Util.inherits (constructor, Superconstructor)inherit a method from a prototype to another constructor from one of the constructor functions. The constructor prototype will be set to a new
Node. js is a simple example of checking whether a port is occupied. node. jsport
Preface
In network technology, a Port has two meanings: one is a physical Port, for example, ADSL Modem, Hub, switch, router is used to connect other network equipment interface, such as RJ-45
In " using Angularjs," we mentioned how to introduce Angularjs in the node. JS Project, this time providing a very simple example that demonstrates instructions in Angularjs, data binding , Services and other content.I am ready to do the Web management system, different administrators will have different permissions, the administrator login to see the menu and hi
:...True2. Invocation of functionsThis points to the global object in the execution environment (browser->window nodejs->global)function Pet2 (words) {This.words = wordsConsole.log (This.words)Console.log (This===global)}Pet2 (' ... ')Printing results:...True3. ConstructorsThis method is called by the instance object, which points to this instance objectfunction PEt3 (words) {This.words = wordsThis.speak = function () {Console.log (This.words)Console.log (This)}}var cat = new PEt3 (' Miao ')Prin
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