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What characters are allowed in an email address?
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See RFC 5322: Internet Message Format and, to a lesser extent, RFC 5321: Simple Mail Transfer Protocol.
RFC 822 also covers email addresses, but it deals mostly with its structure:
addr-spec = local-part "@" domain ; global address
local-part = word *("." word...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...when using <h:commandLink> , <h:commandButton> or <f:ajax> , the action , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values.
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What are the benefits of dependency injection containers?
...pers of different kinds, etc. I'm just wondering, what are the benefits of XML configuration such as:
16 Answers
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中文网（自研/维护）拓展 · App Inventor 2 中文网
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中文网（自研/维护）拓展 拓展.aix下载
AI2Utils
属性
事件
方法
AirPlaneState
属性
事件
方法
AliSms
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Passing Parameters JavaFX FXML
How can I pass parameters to a secondary window in javafx? Is there a way to communicate with the corresponding controller?
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What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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I created a test suite, precisely to explore these issues (and more) (archived copy).
And in that sense, you can see the performance issues in this 50+ test case tester (it will take a long time).
Also as its name suggest, it explores the usage of using the nat...
Algorithm for creating a school timetable
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This problem is NP-Complete!
In a nutshell one needs to explore all possible combinations to find the list of acceptable solutions. Because of the variations in the circumstances in which the problem appears at various schools (for example: Are there constraints with regards to c...
GetHashCode Guidelines in C#
...ashed collection because it no longer lives in the correct hash bin.
For example, object A returns hash of 1. So, it goes in bin 1 of the hash table. Then you change object A such that it returns a hash of 2. When a hash table goes looking for it, it looks in bin 2 and can't find it - the object is...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
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MQTT扩展下载：
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目：
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构，基于发布/订阅（Publish/Subscribe）模...
OO Design in Rails: Where to put stuff
...t-model, skinny-controller" paradigm, and intermediate developers hastily excise everything from their controllers and throw it into the model, which starts to become a new trash can for application logic.
Skinny controllers are, in fact, a good idea, but the corollary--putting everything in the mo...