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在jquery this這個產品中，有9篇Facebook貼文，粉絲數超過5萬的網紅軟體開發學習資訊分享，也在其Facebook貼文中提到， --團購已經成團-- 下一團的團購網址在 https://jioukou.yosgo.com/s/0e8662 ，有興趣歡迎找朋友同事一起來參加 這門課為誰設計? 幾乎所有人! 資深的 JavaScript開發者將可比別人快一點完成這門課，這門課的設計以讓學員覺得可親近且有趣為主。 ...

jquery this 在 軟體開發學習資訊分享 Facebook 的最讚貼文

軟體開發學習資訊分享 By 軟體開發學習資訊分享

2018-10-30 23:31:41 有 6 人按讚
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--團購已經成團--

下一團的團購網址在 https://jioukou.yosgo.com/s/0e8662 ，有興趣歡迎找朋友同事一起來參加

這門課為誰設計?

幾乎所有人! 資深的 JavaScript開發者將可比別人快一點完成這門課，這門課的設計以讓學員覺得可親近且有趣為主。

有些影片所談的主題對有些人可能會覺得有點傷腦筋，如 scoping、 keyword this 與 prototypal inheritance.

這不是從基礎開始的 JavaScript課程，所以如果你在找初學者的課，這可能不是你的選擇。 你需要有一些函數(functions)、變數(variables)、物件(Objects)、陣列(Arrays)和其他基礎知識。

1. 依賴jQuery者：想要更好地了解JavaScript核心功能

2. 既有JS開發者：想要跨過個人的學習缺口並將ES6從頭到尾走過

3. PHP和WordPress開發者：想要在client端變得更強

4. 任何想要精進 JavaScript且想好好從基礎到進階觀念實用性地參透

>更多 Wes Bos 線上課程團購請參考 http://bit.ly/2JejZr2

https://jioukou.yosgo.com/s/f45061…

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軟體開發學習資訊分享

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軟體開發相關技術、新鮮事、知識分享
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jquery this 在 Taipei Ethereum Meetup Facebook 的最佳解答

Taipei Ethereum Meetup By Taipei Ethereum Meetup

2018-09-24 00:50:34 有 18 人按讚
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📜 [專欄新文章] 0xDonate — An Ethereum donate service for streamers
✍️ Alvin Hou
📥 歡迎投稿： https://medium.com/taipei-ethereum-meetup #徵技術分享文 #使用心得 #教學文 #medium

給實況主的區塊鏈斗內服務

透過 Ethereum Smart Contract，讓觀眾可以一鍵斗內給實況主，並讓斗內訊息在實況中即時推播出來的小服務

0x Donate

前言

現在的實況主大多是透過PayPal、歐付寶等第三方支付來接受觀眾斗內。但如果實況主不想被抽手續費，或想讓觀眾直接斗內加密貨幣給他呢？直接留下錢包地址是一個方法，但誰斗了多少很難即時查看也缺乏跟觀眾的互動。

因為最近剛好有點閒時間，所以就寫了個網站，透過智能合約讓實況主也能跟斗內的乾爹們互動。

How it works

網站的架構相當簡單，只要有一個錢包地址就可以開始使用了。實況主輸入錢包地址就產生對應的3個連結

1. Donate Page

就如同傳統的第三方支付，實況主將斗內連結放在個人的介紹頁面中，觀眾直接透過那個連結捐款。填完想說的話和金額，按下按鈕使用 Metamask 送出交易就完成了。
以Twitch為範例
2. Notification Page

這個頁面會監聽合約上的event，當有人斗內時就會跳出斗內訊息、斗內人名稱和金額。實況主只須於OBS Browser source把這個連結設定好即可。

3. History Page

誰是最大乾爹? link
不免俗的每個實況主都有他的Top donation list，這個頁面會把鏈上的斗內紀錄抓下來彙整成一個排行榜，讓實況主輕鬆看出誰是最大乾爹，乾爹們也不用擔心自己的心意不會被看到，都已經寫在鏈上了。

Features

0 fee, 0 setup, only a 0x address required

0 fee

對比現在第三方支付，本服務不抽手續費。以歐付寶為例，如果有人信用卡斗內十元，就有高達五元會被抽走。而0xDonate只需送出交易的人負擔交易本身gas費用，實況主可以獲得全額捐款。

0 setup

不需要註冊，不需要綁定任何API Key。不論是Twitch、Youtube Gaming 或是其他平台都能夠使用。

0x address

有一個錢包地址就可以開始使用了！

The Contract

其實合約本身也蠻簡單的（？），目前是部屬在Ropsten Testnet上。

donate 負責將ETH轉到實況主的地址，並觸發NewDonation ，讓斗內資訊可以在實況中顯示出來。而為了省gas，合約並沒有將斗內訊息的內容寫到鏈上。

getDonation 查看鏈上的紀錄，以用來產生乾爹排行榜。

一些開發上的雜談

在半年前於Reddit上看到類似的服務 NanoTwit.ch，就有想說來玩玩看一個ETH版本的。最早的prototype是之前寫的 SimpleEth，一個一鍵打交易的jQuery插件。雖然拖了很久我猜市面上已經有類似的服務了，不過秉持著『頂著幹，做中學』的精神，還是把這個專案寫完了。

都2018年了寫網頁怎麼能不用框架呢？

平常寫前端沒什麼在用框架，這次嘗試看看用快過氣的React 把半成品 ETH-Stream-Donations 包得更現代化些。過程中要特別感謝 @wingemerald 提供技術上的支援。但不得不說React跟一些雜七雜八的dependency真是肥大，有時候webpack跑一跑小筆電的風扇就轉起來了。

開發上有遇到一些小阻礙，一個是web3的雷，為了要支援火狐所以就換了版本。另一個是新版本web3為了要監聽合約的Event必須要使用 Websocket Provider，就改成使用infura的ws節點。

其他都還算順利，畢竟合約部屬好前端包一包就差不多完工了，資料都在鏈上不用處理後台也是挺方便的。

結語

很多人說區塊鏈是不是過譽了，但我相信Ethereum健康的開發者社群，總是會有些新的點子生出一些有趣的DApp或應用出來。

雖然是個寫好玩的 side project，但歡迎不論是有在實況或是有興趣的朋友都去玩玩看，在測試鏈上人人都可以當乾爹！

網址： 0xdonate.io

CryoliteZ/0xDonate

0xDonate — An Ethereum donate service for streamers was originally published in Taipei Ethereum Meetup on Medium, where people are continuing the conversation by highlighting and responding to this story.

👏 歡迎轉載分享鼓掌

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We have regular meeting twice per month on discussing blockchain technology, smart contracts and DApps development! We would love to have you join us!
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jquery this 在 陳星合 Facebook 的最讚貼文

陳星合 By 陳星合

2018-09-09 20:57:41 有 12 人按讚
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麻煩大家幫忙
留下優秀的一家人

他們來自波多黎各
父母親都是名校約翰霍普金大學的電腦碩士
(Master Degree in Computer Science - Johns Hopkins University at Laurel, MD)
他們著五個孩子，到全世界學習
Diego 17歲 Paula 13 歲 Alonzo 12 歲
Felizi 8 歲 Matteo 6 歲

八月，他們到了台灣
發覺這是一個非常適合的生活環境
有好的醫療、中文學習環境、電腦產業、和超好吃的水果
九月，Diego , Paula, Alonzo進入惠文高中寄讀
他們來了之後，學校形成一個很棒的英語學習情境
台灣學生都被迫用英文跟他們互動

星期五與台北歌德學院簽訂德國「PASCH夥伴學校」時
他們三個和學校弦樂社一起合奏卡農(見影片)
非常非常有教養的一家人

然而他們11月就必須離開台灣
因為他們來台灣的第五天
得到美國總公司的通知
他們收掉波多黎各的公司
爸爸Tommy失業了
所以這幾天，他在台中接一個英文家教
但經濟仍是問題

如果台中的朋友可以提供11月4日前的短期英文、西班牙文家教工作
或是提供長期電腦工程師的工作
麻煩和Tommy聯絡
以下是他的聯絡方式及完整資歷
(願意幫他們申請工作簽證更好)
他們很願意把台灣當成第二個家

PS
覺得政府說要把英文變成第二語言
最棒的方式是吸引國外的學生進入我們的校園
在人才即國力的年代
讓優秀的國際人才留在台灣
如果在台灣就有很好的英語學習環境
我們就不用一窩蜂跑到國外

聯絡TOMMY IRIZARRY-SIKES
Contact Information
Postal: Lane 400, Unit 11, Section 2, Nantun Road, Nantun District, Taichung City, Taiwan 408
Email: tirizar@gmail.com
Phone number: 0908 979 417
LinkedIn Profile: http://pr.linkedin.com/pub/tommy-irizarry/25/16/815

孩子的影片
Diego violin in a quartet:
https://youtu.be/ArkvU8Czmk8?t=37s

Diego violin Doble de Bach:
https://youtu.be/LYvnKwEueyA

Diego plays piano Clair de Lune:
https://youtu.be/CWCQMo5XJEY?t=14s

You can see some other videos in this YouTube channel:
https://www.youtube.com/user/tirizar/videos?reload=9

履歷
Summary of qualifications
Software developer for private industries and government agencies. Proficient web developer using classic ASP code, standard html, CSS and SQL Server for data storage. Web server administrator and SharePoint Power User.
 Android developer
 Certified Ethical Hacker
 Programming / Markup languages: HTML, XML, ASP, PHP, CSS, JavaScript/AJAX/JQuery, experience with Java, C++ and C.
 Mobile development: Java, Android, Android Studio.
 Technologies / Tools: IIS 6.0/7.5, SQL Server, Dreamweaver, Fireworks, Microsoft SharePoint 2007/2010, Microsoft Office suite including InfoPath, Access, Excel, Google Analytics, Google AdSense, Facebook Advertising, Microsoft SharePoint Designer, Inquisite Surveys.
Experience
Since November 2016-current
Enterprise Iron
Principal consultant – Web Developer
 Worked on the redesign efforts of the secure site for an international financial client. Applied responsive design principles using the Bootstrap framework while creating modular, reusable components of the code. Analyzed web page dependencies and identified legacy unused pages in the system.
Since November 2015-current
e-Nabler Corporation
Android developer – Professional Services Contract
 Developed Java code for the eMobilePOS and Tupyx apps for their Android versions.

Since October 2013-November 2014 TEK Systems
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Continued supporting Veteran’s Affairs IT systems, including managing SharePoint 2010 systems and supporting databases. We identified issues with several databases including the management of IIS and SharePoint logs which were consuming many recourses and in a couple of occasions made the systems unavailable.
 Enabled and configured space monitoring tools in the SharePoint server farms.
Since November 2011-September 2013 Centuria Corporation
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Developed a training registration web site that has been tweaked and used multiple times for different registration purposes, including new telephone system training, and scheduling software upgrades of encryption on laptops and upgrades to Apple Mac OS. The system uses a web front end and a SQL back end.
 Performed a routine web server maintenance tasks including monitoring traffic logs, identifying and archiving sites no longer in use, evaluating tools to assist in the management of the web server.
 Administered and migrated the FTP server from Windows 2003 Server / IIS 6 into Windows 2008 R2 Server / IIS 7.5. Configured new sites to support general operations within the VA Intranet.
 Maintained and enhanced legacy sites, modifying forms and reports in needs to be updated. This includes modification and creation of site in the Enterprise Content Management System used at the VA.
 Assisted other team members in various tasks including the creating or modification of surveys in the Inquisite system, and also the migration of some surveys into SharePoint, the modification of an Access application.
December 2001 – August 2011
Systems & System Software Solutions
Web Developer / Web Master for the Department of Veterans Affairs in DC
 Mr. Irizarry developed a web based application for the State Home Per Diem Office, which manages millions of dollars in payments to the state homes, to replace an Access database. The Access database was converted to MS SQL Server database and all data was migrated successfully. He created a web based interface using the standard VA intranet look and feel. He also developed a custom interface for each of the 3 roles (CBO, VAMC and VISN). Tools were built for the administrator to view current reports, view missing reports lists, and configure many parameters in the application. The VAMC report form was heavily automated using jQuery to perform auto calculations, increasing data validation and saving time to the users. After the application was launched users commented frequently about how user friendly is the new interface and about the time savings. Tasks that will take 2 hours to be completed now take 15 minutes. We have close to 12,000 reports in the system.
 There were various requests to the IT office for a web based training registration system of different types. Mr. Irizarry developed a registration system which was later used for the following projects: Take your child to work day, New Telephone system training registration, Laptop Hard Drive encryption software upgrade among others.
 Developed an alternate cascading style sheet for SharePoint 2007, converting the out of the box look and feel to the Department of Veterans Affairs standard website look and feel.
 After one of the VA’s laptops was stolen Mr. Irizarry worked to develop a Risk Assessment web based application. He created an Excel template which management will upload to an FTP server with information and details about remote employee access and the sensibility of the data accessed by those users. He also created VB Scripts to validate those Excel files an upload that information into an MS SQL database. Reports for upper management in Central Office were then created which prompted management to enforce stronger security measures, like hard drives encryption. In total more than 500,000 records were processed for the reports.
 Administration of IIS 6.0 web server and MS SQL Server databases used in our websites.
 Wrote migration scripts to move IIS 6.0 sites into a new IIS 7.5 server
 Designed, developed and maintained multi-tier applications for the Veterans Health Administration. Most of the sites access a MS-SQL Server database, use cascade style sheets and ASP server side processing. The sites were developed using Adobe/Macromedia tools like Fireworks, and Dreamweaver.
 Installed BlackBerry wireless email devices and trained users on the basic device usage.
 Web developer for the Department of Veterans Affairs. Redesigned and modified web pages to make them compliant with the Section 508 guidelines. Tested validation tools that verify if web pages are “Section 508” compliant. Section 508 are guidelines that must be followed by all government agencies and points to which government resources must be make accessible to people with disabilities, i.e. blind, deaf, etc.

November 1999 - December 2001
Compaq Computer Corporation
Consulting Associate II
 Design and develop the XOOB (Xevo out of the box) Web user interface. XOOB uses COM+, ASP, XML, XSL and JavaScript to provide a web user interface to the Xevo Workbench Platform based on the role associated with the user. Development was done using Visual Studio tools, IIS and XMLSpy.
 Develop Active Server Pages for the Helpdesk solution for the PrimusASP project.
 Design and code an ActiveX component that serves as the bridge between the Compaq ASP Framework and the Infranet billing system for Primus. Supported integration with other components of our framework.
 Design, code and troubleshoot software for the Primus ASP (Application Service Provider) project. Software includes a DLL and various VB programs that run as NT Services, which are key components of the Compaq ASP framework.
June 1998 – October 1999
National Security Agency
Computer Scientist
 Mr. Irizarry worked for as a software developer for the TOKENEER project. TOKENEER is a test platform for the integration of smart cards, biometrics (fingerprint, hand, iris and facial recognition) and a public key infrastructure. Development was done on Windows NT workstations using Visual C++ and Visual SourceSafe for source control. Mr. Irizarry used an SDK to capture and match fingerprints against a database of fingerprints. He also created software to created some statistics of “False Accepts and False Reject Rates” of the fingerprint. He also worked with other team members to identify which fingerprints characteristics could affect those rates. He then added error detection functions to the fingerprint recognition software to identify corrupted files of fingerprint images
 Conducted research for methods to add security services to an off-the-shelf computer.
 Developed C code to process fax data on an UltraSparc/SunOS station.
 Wrote software to generate a daily report of traffic load in a telephone switch by analyzing the switch logs.
Education
Certifications:
 Certified Ethical Hacker – 03/28/2014
Master Degree in Computer Science - May, 2001 Johns Hopkin

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陳星合

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The find() method in jQuery finds the descendant elements of the given selector. A descendant can be a child, grandchild, and so on. It is an inbuilt method in ...

#23. 【jQuery入門】thisの使い方まとめ | 侍エンジニアブログ

フリーランスの桃太郎です。 他のプログラマーが書いたjQueryやJavaScriptのプログラムの中に”this”というキーワードを見かけ、何だこれは？と悩む初 ...

#24. jQuery - 维基百科，自由的百科全书

jQuery 是一套跨瀏覽器的JavaScript函式庫，用于简化HTML與JavaScript之間的操作。 ... 約翰·雷西格（John Resig）在2006年1月的BarCamp NYC上釋出了第一個版本。目前由Dave ...

#25. Difference between $(this) and 'this' in jQuery

In the second example, I have to use innerText() to show the text of the span element as this keyword is not a jQuery object yet. So I have to ...

#26. Différence entre this et jQuery $(this) - Finalclap

En jQuery, toutes les fonctions s'appliquent à un élément jQuery. En temps normal, un élément jQuery est retourné par un sélecteur CSS comme ceci : $('div# ...

#27. jquery中this与$(this)的用法区别 - 51CTO博客

jquery 中this与$(this)的用法区别，this，表示当前的上下文对象是一个htmlDOM对象，可以调用html对象所拥有的属性，方法。$(this),代表的上下文对象是 ...

#28. The JavaScript “this” Keyword Deep Dive: jQuery Click Handlers

That is to say: inside of the click event handler, “this” refers to the element that was clicked. When you put “this” inside of: $( ), you “wrap ...

#29. jQuery getting id via $(this) not working

I am encountering an issue when trying to get the id attribute of an element using the $(this) keyword and the attr(“id”) method.

#30. how to get checked and unchecked checkbox value in jquery ...

Lập trình Javascript và jQuery. Check Uncheck CheckBox In jQuery Following is the jquery script that is used to implement the check uncheck checkbox in asp.

#31. JavaScript - Bootstrap

If you include plugins individually, make sure to check for these dependencies in the docs. Also note that all plugins depend on jQuery (this means jQuery must ...

#32. jQuery Tutorial 14: $(this) selector - YouTube

Learn what is $(this) selector in jQuery and how is it different from `this` keyword in javascript.

#33. Migrating Your App From jQuery to React - MakeUseOf

jQuery and React are both popular JavaScript libraries for front-end development. While jQuery is a DOM manipulation library, React is a ...

#34. jQuery【this】便利な$(this)の使い方 - プログラマカレッジ

JavaScript でも キーワード「 this 」を使用しますが、jQuery では 「 $(this) 」をオブジェクトとして使用します。 今回は、jQuery の $(this) の ...

#35. Draggable - jQuery UI

jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library.

#36. You Might Not Need jQuery

Examples of how to do common event, element, ajax and utility operations with plain javascript.

#37. jQuery JavaScript Library - GitHub

When jQuery source references one of those issues, it uses the pattern trac-NUMBER , where NUMBER is the numerical ID of the issue. You can find such an issue ...

#38. How to Get the Children of the $(this) Selector in jQuery

You can use the find() method to get the children of the $(this) selector using jQuery. The jQuery code in the following example will simply select the child < ...

#39. 详谈jQuery中的this和$(this) - 脚本之家

网上有很多关于jQuery的this和$(this)的介绍，大多数只是理清了this ... 有应用场所的，不能一概而论在jQuery调用成员函数时，this就是指向dom对象。

#40. this and $(this) in jQuery callbacks | Passion for Coding

this is a reference to the html DOM element that is the source of the event. · $(this) is a jQuery wrapper around that element that enables usage ...

#41. 5 jQuery.each() Function Examples - SitePoint

This article provides an extensive overview of the jQuery each() function, using several examples to show why it's one of jQuery's most ...

#42. DataTables | Table plug-in for jQuery

Name Position Office Age Start date Salary Tiger Nixon System Architect Edinburgh 61 2011‑04‑25 $320,800 Garrett Winters Accountant Tokyo 63 2011‑07‑25 $170,750 Ashton Cox Junior Technical Author San Francisco 66 2009‑01‑12 $86,000

#43. jQuery 選取child element 子元素 - 菜鳥工程師肉豬

jQuery 如要選取某個元素的child element（子元素），可以使用 jQuery( selector [, context ] ) 。 selector 是你要選取的子元素，而 context 則是該 ...

#44. jQuery's this: demystified - Remy Sharp

'this' is a jQuery object when you are inside your own jQuery functions. Note that the result of a selector query (i.e. $('a') ) is a jQuery ...

#45. select - API Reference - Kendo UI Grid - Kendo UI for jQuery

Each cell element corresponds to the jQuery selector applied for each table. One of the table cells will be a descendant of div.k-grid-content-locked and ...

#46. Using jQuery Remove Attribute Function Explained - BitDegree

The jQuery .removeAttr() deletes the specified attributes from each matched element. It uses the JavaScript .removeAttribute() function but can ...

#47. jquery - npm

JavaScript library for DOM operations. Latest version: 3.6.4, last published: 23 days ago. Start using jquery in your project by running ...

#48. jQuery Modal

jQuery Modal is the easiest way to display modal windows with jQuery. Built by Kyle Fox.

#49. Retrieving selections | Select2 - The jQuery replacement for ...

There are two ways to programmatically access the current selection data: using `.select2('data')`, or by using a jQuery selector.

#50. Hosted Libraries - Google Developers

This library depends on jQuery. You must also load jQuery before loading this module. jQuery UI. snippet: <link rel ...

#51. jquery中this指的是什么意思- web开发- 亿速云

jquery 中this代表“当前对象”的意思，this表示的是html中的当前元素，利用“$(this)”语句把html元素变成jquery对象，进而使用jquery方法来处理当前对象， ...

#52. jQuery Validation Plugin | Form validation with jQuery

This jQuery plugin makes simple clientside form validation easy, whilst still offering plenty of customization options. It makes a good choice if you're ...

#53. How to check if an element exists in jQuery - Mkyong.com

To check if an element which has an id of “div1” exists. jQuery length example. <html> <head> <script type= ...

#54. How to find HTML Elements in jQuery - Linux Hint

Using jQuery selectors, you can find HTML elements from Document Object Model based on the element name, class, id, attributes, and types. This write-up will ...

#55. Cache results from your jQuery selectors - Progress Software

A lot of developers use the popular jQuery JavaScript library, and the Sitefinity CMS team is not exception. We had quite a lot of code that relies on jQuery in ...

#56. DevExtreme - JavaScript UI Components for Angular, React ...

JavaScript Component Suite for Responsive Web Development.

#57. jQuery get hidden field value by id, by name, and by type

Get Hidden field value in jQuery: Here in this tutorial will learn how we can get values of the input hidden field in jQuery. As jQuery is a powerful ...

#58. jQuery Check if element is hidden - Tutorial Kart

Using jQuery there are many ways to check if a HTML Element is hidden or not. In this tutorial, we shall look into some of the ways with examples.

#59. jQuery Cookbook: Solutions & Examples for jQuery Developers

Both of these goals are easily accomplished by declaring a default options object, overriding the default options with user-supplied options and the jQuery ...

#60. Learning jQuery: A Hands-on Guide to Building Rich ...

This fact is relevant when importing data attributes, because in jQuery 1.5, a feature was introduced in the data() method to automatically convert all data ...

#61. Javascript/jQ this $(this)是什麼 - HackMD

Javascript/jQ this $(this)是什麼. tags: javascript jQuery. 在寫到radio 點擊取消選取時 看到的這樣的寫法. 想說都把this給賦值變量了 怎麼在if 裡面還寫成this

#62. Data Visualization with JavaScript - 第 141 頁 - Google 圖書結果

(This native version won't work on older browsers like jQuery will, but we're not worrying about that for this example.) After this code executes, ...

#63. JQuery -- this 和$(this) 的区别（Neatstudio.COM） - 膘叔

Javascript,gouki,jquery,JQuery -- this 和$(this) 的区别,膘叔的简单人生,目前是一个个人站点,它研究学习LAMP相关知识,转载一部分互联网上LAMP牛人 ...

#64. Learning JQuery - Google 圖書結果

jQuery. works. well. With theresurgence ofinterestindynamic HTMLcomes a proliferation of JavaScriptframeworks. Someare specialized, focusing on justone or ...

#65. jQuery Practical exercises, practice and solution - Part-I

jQuery Practical exercises, practice and solution - Part-I: find, hide elements, change background color, append, remove, select elements ...

#66. jQuery中this和$(this)的區別是什麼？ - tw511教學網

區別：this表示當前的上下文物件是一個html DOM物件，可以呼叫html物件所擁有的屬性和方法；而「$(this)」代表的上下文物件是一個jquery的上下文 ...