eloquent javascript

The setTimeout and setInterval of JavaScript are two methods that can easily fool others' feelings, because we often start to think that the call will be executed in the established way. I think many people share the same feeling. For example The Code is as follows: SetTimeout (function () {alert ('Hello! ');}, 0 );SetInterval (callbackfunctions, 100 ); It is assumed that the greeting method in setTimeout will be executed immediately, because it i

[View JavaScript from jQuery]-JavaScript, jquery-javascript What is JavaScript? I believe Baidu and Google can find a lot of definitions and explanations. In my understanding, JavaScript is a client script language used to process page data logic and user experience (webpage

Sometimes we need to trigger an event without returning a value during js writing, so we may need to write href = "#", which contains a location information. the default anchor is # top, that is, the top of the Web page. When you click this link continuously and quickly, the browser slows down or even crashes. Of course, we generally use three href = "###", but after reading this article, we can use javascript:; (a colon and a semicolon) In

) { canceltimeout (Timerid); } }keepAlive()The function can be placed at the end of the method of the WebSocket connection onOpen() , cancelKeepAlive() at the very bottom of the onClose() method.43, time note primitive operators faster than function calls, using VANILLAJSFor example, generally don't do this:var min = Math.min (A, b); A.push (v);This can be replaced by:var min = a 44. Pay attention to code structure during development, check and compress

This article mainly introduces the differences between JavaScript and HTMLDOM and related information about the relationship between Javascript and DOM. For more information, see the following differences: Javascript JavaScript is the most popular Browser Scripting language on the Internet. Easy to use! You will love

requirement by using these two functions, one for keeping the connection active and the other for ending the state.var timerid = 0; function keepAlive () { var timeout = 15000; if (websocket.readystate = = Websocket.open) { websocket.send ("); } Timerid = setTimeout (keepAlive, timeout); } function cancelkeepalive () { if (timerid) { canceltimeout (Timerid); } }The keepAlive () function can be placed on the last side of the OnOpen () method of t

of the OnOpen () method of the WebSocket connection, and cancelkeepalive () is placed at the very end of the OnClose () method.43. Time note primitive operators are faster than function calls, 2 use VanillajsFor example, generally don't do this:var min = Math.min(a,b); A.push(v);This can be replaced by:var min = a 44. Pay attention to code structure during development, check and compress JavaScript code before go onlineDon't forget to use a code beau

: Getting Started: Eloquent javascript a hacker writing primer, the book to Hacker,open source, free software admiration and obsession abound, For example, the console that pays tribute to Emacs below the website. The author is very clever and the target reader of the book, beginners, is not to be applauded for these small details. What he wants is to convey to the people who have just begun t

compress code before going online (for example, using JSMin ). Note: currently Code compression is generally recommended UglifyJS (https://github.com/mishoo/UglifyJS2) 　　45. JavaScript is profound and profound, and there are some good learning resources here • Code Academy resources: http://www.codecademy.com/tracks/javascript• Eloquent

Primary reading:　　JavaScript Advanced Programming: A very complete classic primer book, known as one of the JavaScript Bible, detailed in detail, the latest version of the third edition has been released, the proposed purchase.　　"The Return of JavaScript ", a Web development project manager of Baidu, wrote, as a beginner to prepare the entry-level tutorial is als

development project managers wrote that beginner's introductory tutorials are also good.10. "JavaScript.The.Good.Parts"Yahoo Daniel, JavaScript spiritual leader Douglas Crockford's masterpiece, although only 100 pages, but Abas Ah! It is highly recommended to read.11. "Eloquent JavaScript"The book is more than 200 pages, very short, with a few very classic examp

of the onClose () method. 　　43. Time note: the original operator is faster than the function call, And VanillaJS is used. For example, do not: 　var min = Math.min(a,b);　　A.push(v); This can be replaced: 　var min = a 　　44. Pay attention to the code structure during development. Check and compress JavaScript code before going online. Don't forget to use a code beautification tool when writing code. Use J

Learning javascript object-oriented understanding javascript objects and javascript object-oriented I. Programming ideasProcess-oriented: process-oriented, step-by-step Refinement from top to bottom. The program is regarded as a set of function calls.Object-oriented: Objects Act as the basic unit of a program and are decomposed into data and related operations.Ii

Understanding and using JavaScript callback functions | JavaScript is very sexy and javascript callback Functions In JavaScript, a function is the first class Object. This means that the function is of the Object type and can be used in the first class like other objects (such as String, Array, and Number, because they

After reading the BestPractices chapter of JavaScriptDOM programming art, we know that we have many things to consider when creating a webpage. For example, we use JavaScript to enhance our webpage, but we need to consider that, if your browser does not support JavaScript, or the user disable JavaScript, can our webpage be displayed normally? For example, The

Javascript: a deep understanding of basic Javascript knowledge and a deep understanding of javascriptThe eval global function is shown in the loader of dojo as the next function. Var eval _ = new Function ('Return eval (arguments [0]); '); // The Function runs in the top-level scope, but the running efficiency is slower, however, this method does not pollute global variables and calls the top-level scope ev

Why is the current mainstreamProgramAre all objects created in the language? The following definition gives us an answer: In object-oriented languages, objects are defined as anything that people want to study. From the simplest integer to the complex aircraft, objects can be viewed as objects, it not only represents specific things, but also abstract rules, plans, or events.Aside from these abstract definitions, we can understand them from the underlying computer technology,Objects are actual

[JavaScript] implements multiple JavaScript special effects and javascript special effects on the same webpage. If the label appears twice on the webpage, all the JavaScipt scripts will no longer take effect, the label can only appear once. However, multiple JavaScript effects are often required for the same webpage.

ending the state.var timerid = 0; function keepAlive () { var timeout = 15000; if (websocket.readystate = = Websocket.open) { websocket.send ("); } Timerid = setTimeout (keepAlive, timeout); } function cancelkeepalive () { if (timerid) { canceltimeout (Timerid); } }keepAlive()The function can be placed at the end of the method of the WebSocket connection onOpen() , cancelKeepAlive() at the very bottom of the onClose() method.43, time note primit

-performance javascript: Another masterpiece of Nicholas C. Zakas, author of the Advanced programming of JavaScript. "Eloquent JavaScript": This book is only 200 pages, very short, but changed my writing habits, this book through a few very classic examples (Aunt Emily's Cat, the tragic hermit, the simulation of the bi