ASP. NET SignalR with LayIM2.0 easy to implement the web chat room (vii) History of query (time, keywords, pictures, files), keywords highlighted.

ObjectiveThe previous article explains how to customize the right-click menu, which is the front-end content, the content of this article is one: query. Chat history query, in the previous blog about finding friends has mentioned Elasticsearch,

Use JS to detect whether the browser uses developer tools under Chrome

When browsing the Web page, I inadvertently see a detection browser using the Developer tools method, which is hereby recordedcode example:1 (function() {2 var re=/x/; 3 var i=0; 4 Console.log (re); 5 6 re.tostring=function() {7

Escape () vs encodeURI () vs encodeURIComponent ()

There are three functions in JavaScript that can encode strings, namely: Escape,encodeuri,encodeuricomponent, corresponding 3 decoding functions: Unescape,decodeuri, decodeURIComponent.Here's a brief look at the difference between them1 Escape ()

Nginx website has been continuously attacked for 1 months after the final anti-attack strategy

Nginx website has been continuously attacked for 1 months after the final anti-attack strategylast month after the structure of all the migration on the cloud, generally more stable, business volume also came up, the cute bad guys are coming, 7x24

JS trim function de-whitespace function and regular collection

When working with text box input values in JavaScript, it is often used to "remove the front and back blanks" function. jquery's friends know that jquery provides a trim () function that can easily help us achieve this effect. However, if the

HTTP Header Explanation

1. Accept: Tell the Web server what type of media you accept, */* represents any type, type/* represents all subtypes under that type, Type/sub-type.2. accept-charset: The browser affirms its own received character setaccept-encoding: The browser

Use of the Curl command

Recently the company and another company, the company will regularly send our company a batch of products useful to our company information data, and to be saved in the database for future use, of course, this task fell on me. Soon wrote the model

The memory JS Regular expression

The memory JS Regular expressionRegular expression, there are wood people like me, learned several times but still very ignorant circle, learning when the old understand, learned to forget the light. Well, in fact, or practice is not enough,

Use of the Curl command

Recently the company and another company, the company will regularly send our company a batch of products useful to our company information data, and to be saved in the database for future use, of course, this task fell on me. Soon wrote the model

*bash: How do I use Bash to escape special characters in the URL so that it doesn't have any ambiguity in sed?

In our work, we often need to replace and add URLs from the text using SED. However, we often encounter the ambiguity in the SED of special characters in the URL so that it takes a lot of time to test when writing a bash script. So what are the

The first knowledge of HTML

What is HTML?HTML is not a programming language, but a markup languageHTML is an abbreviation for the English Hyper Text mark-up Language (Hypertext Markup Language), which is a standard language (tag) for making Web pages. The equivalent of a

The 11th session of Hunan University student Program Design Competition: Internet of Lights and switches (hash+ binary + XOR prefix and)

Internet of Lights and switchesTime limit:1 Sec Memory limit:128 MBSubmit:3 Solved:3[Submit] [Status] [Web Board]DescriptionYou is a fan of "Internet of Things" (IoT, IoT ), so you build a nice Internet of Lights and switches in your huge Mansion.

jquery Calculates the time difference (days, hours, minutes, seconds) and uses the timer to get

Similar to the site snapping demand, there will be a time countdown display (days, hours, minutes, seconds)To get the final time compared to the current time, calculate the difference and execute it in seconds with the timerImplementation code:$

A detailed description of the PHP header function

header function in PHP is to send some header information, we can directly use it to do 301 jump, and so on, let me summarize the use of the header function and some common problems to solve the problem. sends an original HTTP header [HTTP header]

HTML <meta> Tags encounter <meta http-equiv= "Refresh" content= "0; Url= "> Detailed

The page periodically refreshes, if added URL, will redirect to the specified page, content followed by the time (in seconds), add this sentence to the of the specified pageIt is also commonly used in real-time applications where periodic refreshes

HTTP Error Codes

I. SummaryWhen a user tries to access content on a server that is running Internet information Services (IIS) through HTTP or File Transfer Protocol (FTP), IIS returns a numeric code that represents the status of the request. This status code is

Recommend several websites or blogs that learn about embedded and Linux better

uboot Download:http://ftp.denx.de/pub/u-boot/Brother Bird's Linux private cuisine: http://vbird.dic.ksu.edu.tw/The Free Software Network application team is a group of birds from the past students composed of the team, the actual operation is based

. NET garbage Collection mechanism GC

first, the need for GC1, the application of resource operations, usually simply divided into the following steps: allocate memory for the corresponding resources → initialize memory → use resources → clean up resources → free memory.2, the

Make a simple music player with Php+h5+boostrap (advanced Version)

Preface: before doing a music player (pure front end), unexpectedly popular, and then someone suggested I put the backstage together, just also want to learn backstage, so learn PHP for two days (don't spit groove My speed, slow work out

Angularjs attachment upload Download

First: Angular-file-upload is a lightweight AngularJS file Upload tool designed for FILEAPI Polyfill that do not support browsers, using HTML5 to upload files directly.The first step: scripts referencing angularjs: ng-file-upload-shim.min.js and

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