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JavaScript Advanced Programming (3rd edition) | Study notes (1): Using JavaScript in HTML

the location of the label If the page requires a lot of JavaScript code, this will undoubtedly cause the browser to have a noticeable delay in rendering the page, while the browser window in the delay period will be blank. To avoid this problem, modern WEB applications typically place all JavaScript references behind the page content in the DOCTYPE HTML>HTML>Head>title>Example HTML Pagetitle>Head>Body>her

JavaScript Advanced Programming (3rd Edition) Notes-Chapter 1th-javascript Introduction

extensions:A) popup The function of the new browser window;b) The ability to move, zoom, and close the browser window;c) Navigator object that provides browser details;d) A Location object that provides detailed information about the pages loaded by the browser;e) A Screen object that provides detailed information about the user's display resolution;f) support for cookies;g) Custom objects such as the activexobject of XMLHttpRequest and IE.6, BOM no standard can be followed, so each browser has

JavaScript Advanced Programming (3rd Edition) Learning notes 8 JS Function (Medium) _ Basics

example from the JavaScript Advanced Programming (3rd Edition) to understand: Copy Code code as follows: Go to global scope, create global variable Object var color = "Blue"; function ChangeColor () { Go to ChangeColor scope, create changecolor corresponding variable object var anothercolor = "Red"; function Swapcolors (Color1,

JavaScript Advanced Programming (3rd Edition) Learning Notes Overview _ Basics

In the beginning of the advent of JavaScript, no one will think it will be applied so widely, but also far more complex than most people imagine, in the process of my own learning, there have been many shocks, but often not long, a lot of beautiful use is blurred again, I hope that through the JavaScript Advanced Programming (3rd

The 3rd edition of the "jquery Combat": the translator Frank Xu Lei

jQuery as the most Popular front-end development Framework! Is the Web front-end development necessary skills! I am very honored to participate in the translation of theJQuery in Action"3rd edition, which isJQuerythe FatherJohn Resigand theJQueryChairman of the FoundationDave MethvinHighly recommended books. This book isJQueryThe most classic learning Book of th

JavaScript Advanced Programming (3rd Edition) Learning notes 9 JS function (next) _ Basics

()-start); }; Test (10);//55,2,55,2 Test (20);//6765,1,6765,7 Test (30);//832040,2,832040,643 As you can see, the greater the N value, the more obvious the advantage of using caching calculations. As an exercise, you can try to modify the function of calculating the factorial yourself. (3) Mimic block-level scopes In ECMAScript, there are statement blocks, but there are no corresponding block-level scopes, but we can use closures to mimic block-level scopes, in general format:

JavaScript Advanced Programming (3rd edition). Nicholas.c.zakas. Scanned version. pdf

best-selling Ajax advanced programming.[1]Directory editing 1th chapter JavaScript What is 1.1 history brief 1.2 JavaScript Implementation 1.3 Summary 2nd Chapter ECMAScript Foundation. 2.1 Syntax 2.2 variable 2.3 keyword 2.4 reserved word 2.5 original value and reference value 2.6 original Type 2.7 Conversion 2.8 Reference type 2.9 operator 2.10 Statement 2.11 Function 2.12 Summary

Professional JavaScript for WEB developers 3rd Edition---reading notes

regular expressions defined in literal form/* * Match all ". At", case insensitive */ var pattern4 =/\.at/gi;002 RegExp constructor to create a regular expression/* * Same as PATTERN1, but created using the constructor function */ var New RegExp ("[Bc]at", "I");ECMAScript 5 explicitly stipulates that the use of regular expression literals must be the same as calling the RegExp constructor directly, each time creating anCreate a new RegExp instance.5.5 Function typeThe function is actually an ob

JavaScript Advanced Programming (3rd edition) pdf

67724.3.3 Compression 67924.4 Summary 68125th Chapter Emerging API 68225.1 Requestanimationframe () 68225.1.1 Early Animation cycle 68225.1.2 Cycle interval Problem 68325.1.3 Mozrequestanimation-frame 68325.1.4 Webkitrequestanima-tionframe and Msrequest-animationframe 68525.2 Page Visibility API 68625.3 geolocation API 68725.4 File API 68925.4.1 FileReader Type 69025.4.2 reading part of content 69225.4.3 Object URL 69325.4.4 reading drag-and-drop files 69425.4.5 uploading files using XHR 69525.

JavaScript Advanced Programming (3rd Edition) Learning notes 7 JS function (ON) _ Basics

the formal parameters synchronously Para1 Console.info (Arguments[1]);//-1 Para2 = 2; Console.info (Arguments[1]);//2, modify the formal parameter para2, will be synchronized modify ARGUMENTS[1] Console.info (PARA3);//undefined, the formal parameter not passed in the actual parameter is undefined ARGUMENTS[2] = 3; Console.info (arguments[2]);//3 Console.info (PARA3);//undefined, formal parameters that do not accept actual arguments do not have a sync relationship Console.info (Arg

JS anonymous functions and Closures (javascript Advanced programming 3rd Edition)

() {Return age + Run ();}};}();The above example of a direct return object can also be written like this:var box = function () {var age = 100;Function Run () {Return ' running ... ';}var obj = {// Create literal objectGo:function () {Return age + Run ();}};Return obj; return This object}();The literal object declaration, in fact, can be regarded as a singleton pattern in the design pattern, so-called singleton mode, which is always an instance of preserving the Object.Enhanced module mode, whic

JavaScript Advanced Programming (3rd Edition) notes-preface

Seldom read, do not like to read, the main school is always sitting, not much qualitative, a book can be read two days, casually turn over, you can also throw in the corner for a few months not to move.The last time I met the JavaScript Advanced Programming (3rd edition), it felt really good, and many great gods were recommending this book, so they downloaded the

JavaScript Advanced Programming (3rd Edition) Learning notes 3 JS Simple data Type _ basics

(Nullval));//nan Console.info (parseint (intval));//1 Console.info (parseint (floatval));//1 Console.info (parseint (Strval));//nan Console.info (parseint (empty));//nan Console.info (parsefloat (Trueval));//nan Console.info (parsefloat (Falseval));//nan Console.info (parsefloat (undef));//nan Console.info (parsefloat (Nullval));//nan Console.info (parsefloat (intval));//1 Console.info (parsefloat (floatval));//1 Console.info (parsefloat (Strval));//nan Console.info (parsefloat (e

JavaScript Advanced Programming (3rd Edition) Chapter Sixth reading notes

constructor. Prototype inheritance This method does not have a strict constructor, and the prototype allows you to create a new object based on an existing object without having to create a custom type.ECMAScript normalized the stereotype inheritance by adding the Object.create () method. Disadvantage: Properties that contain reference type values will always share the corresponding values, just as you would with a prototype pattern. Parasitic inhe

[Read] JavaScript Advanced Programming (3rd edition)

From last year, because it is too long, there is always no way to read it, plus it and the second version of the majority of the same, read more interested in a little bit.Compared with the second version, its biggest change is to add a lot of HTML5 content, such as: Something new Object objects, data properties, accessor properties and some corresponding methods, such as its comparison and summary of common cross-domain methods: POSTMESSAGE,IE8 XDR, upgraded XHR, JSONP cross-domain principle, o

JavaScript Advanced Programming (3rd Edition) Chapter II (using JS in HTML)

1.script element Properties (6): ①async (Asynchronous script), valid only for external scripts②defer (deferred script), valid only for external scripts③CHARSET,SRC (cross-domain), type,language2. Use external JS files whenever possible, because the browser caches all external JS files according to the settings. That is, if you have 2 pages that use the same file, you only need to download the file once3.①js scripts are generally placed in front of The ②async property, which represents the curren

JavaScript Advanced Programming (3rd Edition) Chapter III reading notes

can be a variable, or even an expression. The switch statement uses the strict equality operator when comparing values, so type conversions do not occur. Any function can implement the return value at any time by the return statement followed by the value to be returned, and any code after the return statement will never be executed. Strict mode has some limitations on functions: The function cannot be named eval or arguments;The parameter cannot be named eval or arguments;Two name

JavaScript Advanced Programming (3rd Edition) Note--chapter5: reference type

the array item, the position of the item in the array, the array object itselfL every (): Runs the given function for each item in the array, and returns True if the function returns true for each itemL filter (): An array of items that run the given function for each item in the array, returning the function that returns trueL ForEach (): Runs the given function for each item in the array, this method does not return a valueL map (): Each item in an array runs the given function, returning an

JavaScript Advanced Programming (3rd Edition), chapter 14th

One1. Get formvar form = Document.queryselector (' #formId '); var form = document.forms["FormName"];2.button:submit commits and Form.submit () submissions in JavaScript code the subtle differences3. Two ways of repeating a formDisable the Submit button after the first time the form is submitted, or cancel subsequent form submission actions in the onsubmit handler (how do I cancel the doubt?). )。JavaScript

JavaScript Advanced Programming (3rd Edition) Chapter Fifth reading notes

(Uniform Resource Identifiers, Universal Resource Identifiers) to be sent to the browser. where encodeURI () is used primarily for the entire URI, and encodeURIComponent () is used primarily to encode a segment of the URI. The difference is that encodeURI () does not encode special characters that are themselves URIs, such as colons, forward slashes, question marks, and well sizes, while encodeuricomponent () encodes any non-standard characters it discovers. The two methods corresponding to enc

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