chart js tutorial

2 methods for connecting node. js to MongoDB database tutorial, node. jsmongodb Preface The MongoDB Node. js driver is officially supported by the native node. js driver. It is the best implementation so far and has been officially supported by MongoDB. The MongoDB team has adopted the MongoDB Node.

Original addressGoogle Maps JavaScript Official document: https://developers.google.com/maps/documentation/javascript/Before creating the map, we entered Google developers console to create a key for our development of the map authentication (of course, no key can also be carried out in the next tutorial)To create a simple map: Using the code above, you can create a map.If you can't access your Google server because of a network

PHP User Registration (front desk Perfect JS authentication) PHP Tutorial User registration (Front desk Perfect page effect verification)/*CREATE TABLE ' member ' (' Member_account ' varchar (+) collate utf8_unicode_ci NOT NULL,' Member_password ' varchar (+) collate utf8_unicode_ci NOT NULL,' member_name ' varchar (COLLATE) UTF8_UNICODE_CI NOT NULL,' Sex ' varchar (1) Collate utf8_unicode_ci NOT NULL,' Sch

Normal Writing methodIndex.html: Body A.js:function fun1() { alert("It Works");} fun1(); Maybe you'd prefer to write like this.(function() { function fun1() { alert("It Works"); fun1();}) ()The second method uses the block scope to declare the function to prevent pollution of the global variables, the essence is the same, when running the above two examples do not know whether you notice that when the alert executes, the HTML content is blank, that is not displayed, whe

This article mainly introduces how to implement Simple tabs and automatic switch effects in javascript. It involves the implementation skills of javascript operation tabs and automatic switch effects, which is of great practical value, for more information about how to implement Simple tabs and automatic switch in js, see the examples in this article. Share it with you for your reference. The specific analysis is as follows: Next, I will go to the pr

Today when doing discuz template, use jquery and the original theme JS conflict. This is mostly Discuz x uses $ (ID) as the Fetch method for the DOM node, and the $ symbol just happens to conflict with jquery's default symbol.The following are workarounds based on previous discuz x and jquery conflicts. For everyone to make a reference!The jquery js file jquery-1.8.0.min.js into the/static/

-x.png• 0003.png → neg-z.png• 0004.png → pos-x.png• 0005.png → neg-y.png• 0006.png → pos-y.png4. Add scenario Now we have obtained the environment texture and loaded it into the scene. Three. js makes this very simple:Copy codeThe Code is as follows:// Specifies the url of the texture image.Var urls = ['The path/to/pos-x.png ','The path/to/neg-x.png ','The path/to/pos-y.png ','The path/to/neg-y.png ','The path/to/pos-z.png ','Path/to/neg-z.png'],// Pa

":{ "Type":"Git","url":"Https://github.com/billfeller/nodejs-upload-image-demo.git" },"Author":"Billfeller","License":"MIT","Bugs":{ "url":"Https://github.com/billfeller/nodejs-upload-image-demo/issues" },"Homepage":"Https://github.com/billfeller/nodejs-upload-image-demo"}Is this OK?(Yes) Yes2. Change Package.json, configure the start command:"Scripts": { "start": "Node Index.js"},3. Install the Dependent module: NPM install Formidable–save4. Function Realization: index.js--

This article mainly introduces SublimeText3 commonly used plug-ins and related information for installation methods. If you need more information, refer to the relevant Tutorial: sublime text 3 shortcut keys and configure the compiling environment. How to install the Sublime Text 3 plug-in: Dear friends, it is not easy for a small station to live. It depends on advertising fees. If this article is helpful to you. Please click the advertisement on the

textContent all the text is returned. Also note that ietextContent .Modifying CSS is also a frequently needed operation. The properties of the DOM node style correspond to all of the CSS, which can be directly obtained or set. Because CSS allows font-size such a name, it is not a valid JavaScript property name, so it needs to be rewritten in JavaScript as a camel-named fontSize :// 获取p id="p-id">...p>var p = document.getElementById(‘p-id‘);// 设置CSS:p.style.color = ‘#ff0000‘;p.style.fontSize = ‘

Oracle OAM implements Angular JS front-end application SSO Single Sign-On tutorial, oamsso Background: With the development of the front-end framework, many front-end applications use Angular JS to implement front-end portals. How to Use OAM to implement a single point of failure for front-end portals is a problem. As we all know, it is much simpler to implement

• 0002.png → neg-x.png• 0003.png → neg-z.png• 0004.png → pos-x.png• 0005.png → neg-y.png• 0006.png → pos-y.png4. Add scenario Now we have obtained the environment texture and loaded it into the scene. Three. js makes this very simple:Copy codeThe Code is as follows: // the url of the texture imageVar urls = ['The path/to/pos-x.png ','The path/to/neg-x.png ','The path/to/pos-y.png ','The path/to/neg-y.png ','The path/to/pos-z.png ','Path/to/neg-z.png']

1. First go to the official website to download the installation packagenode. JS Official website: https://nodejs.org/en/Download the corresponding installation package according to your operating systemThis post takes the Node-v4.4.5-x64.msi version as an example to introduce the installation tutorial.2. Installation Steps3. Check if installation is successful after installation is completeExecuting node-v

First, NPM has built-inUse the online tutorial to install NPM always prompt version error, the latest version of the bugExecute the NPM-V, please.Oh, it's already installed.The latest version of node. JS has built-in NPM and does not need to be installed manuallysecond, Express command does not recognizeAfter you install Express, perform the express-v promptExpress is not an internal or external commandwork

"Hungry big front node. JS Advanced Tutorial" Address: Https://github.com/ElemeFE/node-interview1. How to write a copy function of a JSON object function Clone (obj) { var result; if (Array.isarray (obj)) { result = []; Obj.foreach (item) = { Result.push (Clone (item)); }); } else if (typeof obj = = = ' object ') { result = {}; for (key in obj) { Result[key]

== ' rect ') {var w = random (100) +20; var r = g.append ("rect"). attr ("Class", "Child"). attr ("X", Random (W idth). attr ("Y", random (height)). attr ("width", W) . attr (' height ', W). attr ("Fill", Colors (count)); Count + +; }//random lines else if (cmd== ' line ') {var l= g.append ("Line '). attr ("Class", "Child"). attr ("x1", random (width)) . attr ("Y1", random (height)). attr ("X2", Random (width)) .

("Path.country"). attr ("Class", "Country")//color the map block, the z-parameter of the function, which is the data object of the corresponding element (assigned by the data () function that was previously called). Style ("Fill ", function (z) {if (C.mapdisplaymode = =" Countries ") {//or for a specific length of time, data structure in data.min.jsvar y = MAPTIMEDATA[C.MAPSCOPE][C.MAPD Isplaymode][z.id].t;var x = d (y); Judging the color level return x} else {return c.mapoptions[c.mapdisplay

This article mainly introduces Nodejs simple getting started tutorial (3): process. This article describes the communication between Node processes and cluster modules, for more information, see Node. Although there are multiple threads, JavaScript running on v8 is single-threaded. The child_process module of Node is used to create sub-processes. We can use the sub-processes to make full use of the CPU. Example: The Code is as follows: Var fork = r

fantasy westward journey combat module. Therefore, it only takes 20 minutes to complete this process. Yes, it takes 20 minutes and 20 minutes for you to pass by. You can't get any art. You can't do it for 20 minutes, but for 20 minutes you can [easily] [efficiently] learn all the actions of the Cocos2d-JS and 2 demos. Don't hesitate. Open a video and start learning! Download:Click here to download this video. Click to download source code: Act

just positioning the clicked function, and more specifically, we're looking for the location of the code that pops up the popup window.JS further positioning method and the inverse of the location method is basically the same:1) in the function of the next few breakpoints, click on the "test", if the pop-up window between A and B two breakpoints appear, then the code must be between the two breakpoints2) Remove other breakpoints other than A and B, and perform a single step after executing to a