[Turn] 5 JavaScript face questions

Issue 1: ClosuresConsider the following code: 123456 var nodes = document.getElementsByTagName(‘button‘);for (var i = 0; i    nodes[i].addEventListener(‘click‘, function() {      console.log(‘You clicked element #‘ + i);   });}

The modules defined by REQUIREJS are always returned as singleton objects, and can be used to solve the problem of mutual interference between modules by using the classes in JavaScript

There are 2 ways to define a module in Requirejs: Simple key-value pairs and functional dependencies.1. simple Key-value pairs : A module contains only value pairs, no dependenciesDefine ({ color: "Black", size:1, method1:function () {},

Reproduced Loss of precision for JavaScript decimal and large integers

Title: Loss of precision for JavaScript decimal and large integersAuthor: DemonLinks: http://demon.tw/copy-paste/javascript-precision.htmlCopyright: All articles of this blog are subject to the terms "Attribution-NonCommercial use-share 2.5 mainland

JavaScript's Emerging API

JavaScript's Emerging APICategory: JavaScript2012-12-31 16:02 215 people read comments (0) favorite reports Many APIs have specific prefixes, such as Microsoft's MS, Google, and Safari's WebKit. These new APIs remove the previous prefix and the

Reasons and benefits of "return obj = = = void 0" in JavaScript

When learning underscore.js, it is often found in the source code that resembles the following:if (context = = = void 0) return func;if (array = = null) return void 0;Have not seen this writing before, to search the Internet some information, just

JQuery implements 3D text effects and jquery3d text effects.

JQuery implements 3D text effects and jquery3d text effects. This article describes how jQuery implements 3D text effects. Share it with you for your reference. The details are as follows: This jQuery-based 3D text effect demonstration is not a real

25 awesome HTML5 & JavaScript game engine development libraries (1)

gmp

25 awesome HTML5 & JavaScript game engine development libraries (1) Just like in a car, the engine completes the main work and makes the car look incredible. Similarly to the game engine, game developers complete detailed work to make the game look

JQuery selector Code Description (5) -- describes the tokenize parsing process

JQuery selector Code Description (5) -- describes the tokenize parsing process   The following uses $ (div: not (. class: contain ('span '): eq (3) as an example to illustrate how tokenize and preFilter complete parsing. For more information about

Create a Mac Lion OS-like scroll bar using jQuery

Create a Mac Lion OS-like scroll bar using jQuery This article uses nanoscrollerjs to easily implement the special effect of the Mac OS system scroll bar effect, as well as the use methods and parameters of this plug-in, which is very good. We

Implement drop-down menus and drop-down containers with pure CSS (implement navigation bar and navigation drop-down container with pure CSS) and css navigation bar

Implement drop-down menus and drop-down containers with pure CSS (implement navigation bar and navigation drop-down container with pure CSS) and css navigation bar Although there are many similar and even the same cases on the internet, I still

Share 28 free and practical JQuery image and content slider plug-ins, 28 jquery

Share 28 free and practical JQuery image and content slider plug-ins, 28 jquery The jQuery Slider plug-in is generally composed of a Slider and a sliding button. There are also some pause and continue buttons. Generally, Slider plug-in can be

Mac OS X Snow Leopard

Mac OS X Snow Leopard     This tutorial will teach you how to create a JSP server running environment under the apple snow leopard system. Step 1: Download Apache Tomcat for jsp development. A server that compiles JSP files is required, which is

Best ie version check method, ie version check

Best ie version check method, ie version check Prerequisites: real-time performance of NodeList When nodelist is obtained using document. getElementsByTagName, document. forms, document. images, and other methods, the content in nodelist will be

High-quality materials: Flat-style Apple device prototype materials [Free Download]

This is a huge collection of a wide variety of flat-style Apple device prototypes for displaying your response webpage design. These PSD files contain iPhone, iPad, iMac, and MacBook devices that use different perspectives and can be used for

Describes the default configuration items of jQuery Mobile, the jQuery Mobile Chinese configuration api, and jQuery Mobile configuration instructions.

I have been learning jQuery Mobile for a while and have become more and more familiar with jQuery Mobile. I have no reason to deny him. Here I will share with you how to use its configuration items. See the code explanation: $ (Document ). live

Using the splice method in javascript, you can easily insert, delete, and replace array elements.

During the interview, if the examiner asks you to use JavaScript to insert, delete, and replace array elements. If you do not know the method used by Array. prototype. splice, the score may be deducted. Using the built-in splice method of javascript

Exit and exit Status Codes

Exit and exit Status Codes Exit is used to end a script, just like in C. it also returns a value, which is passed to the parent process of the script. The parent process uses this value for further processing. Each command returns an exit status

Web development such as asp, jsp, and php must understand the technology-when to use static pages and when to use dynamic pages

Recently I learned about static pages. It seems that static pages are really good. They can improve the response speed of website pages, reduce the pressure on servers, and reduce access to databases. However, both technologies have two sides,

Exploring JavaScript: Basic coding specifications

It is important to establish and follow the encoding specifications, which keeps your code consistent, predictable, and easier to read and understand. It is important to establish and follow the encoding specifications, which keeps your code

Use of document. cookie in JavaScript

We already know that there is a cookie attribute in the document Object. But what is Cookie? Some Web sites store some information with small text files on your hard disk. These files are called cookies. & Mdash; MSIE help. In general, Coo...

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