Tutorial by Topics: if

Events availability AfterViewInit and AfterViewChecked are only available in Components, and not in Directives. Events order OnChanges (multiple times) OnInit (once) DoCheck (multiple times) AfterContentInit (once) AfterContentChecked (multiple times) AfterViewInit (once) (Component...
The interface INotifyPropertyChanged is needed whenever you need to make your class report the changes happening to its properties. The interface defines a single event PropertyChanged. With XAML Binding the PropertyChanged event is wired up automatically so you only need to implement the INotify...
[ localpart "@" ] domainpart [ "/" resourcepart ] PartCommon UsageLocalpartIdentifies an XMPP entity (optional)DomainpartIdentifies the XMPP serviceResourcepartIdentifies a session of an XMPP entity (optional) XMPP addresses, more commonly known as JIDs (Jabber Identif...
Inside a specific node /path to/element[@attribute_name] Anywhere in the document //*[@attribute_name] Inside a specific node with some value /path to/element[@attribute_name='search value'] /path to/element[@attribute_name="search value"] Anywhere in the documen...
It is possible to put a Python package in a ZIP file, and use it that way if you add these lines to the beginning of your script: import sys sys.path.append("package.zip")
This section provides an overview of what artifactory is, and why a developer might want to use it. It should also mention any large subjects within artifactory, and link out to the related topics. Since the Documentation for artifactory is new, you may need to create initial versions of those r...
Send email verification to logged in user's email address on file. Firebase allows you to customize what your email entails When email hits user's email account, the user clicks on Using your Router of choice (used angular-ui-router in above example), intercept parameters in the URL. Chew the p...
It's easy to see types like a table in an SQL database, where the index is the SQL database. However, that is not a good way to approach types. All About Types In fact, types are literally just a metadata field added to each document by Elasticsearch: _type. The examples above created two type...
UIUserNotificationSettings.types: UIUserNotificationType // A bitmask of the notification types that your app is allowed to use UIUserNotificationSettings.categories: Set // The app’s registered groups of actions ParameterDescriptionuserInfoA dictionary that contains remote notification inf...
To save the UUID we can use SSKeychainUtility. Example can be found on Github page
This works with Liferay Portal up to version 6.2.
The official vignette, "Reference semantics", is the best introduction to this topic. A reminder: DT[where, select|update|do, by] syntax is used to work with columns of a data.table. The "where" part is the i argument The "select|update|do" part is the j argument...
New versions of Ubuntu are released by Canonical every 6 months. Every two years, the release is a Long Term Support version. Support lifespan Normal release - supported for 9 months Long Term Support (LTS) release    • LTS releases for Ubuntu Desktop, Ubuntu Server, Ubuntu Core, and Ubuntu ...

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