Tutorial by Examples: n

When the app is based on more than one criteria, instead of creating a lot of flavors you can define flavor dimensions. The flavor dimensions define the cartesian product that will be used to produce variants. Example: flavorDimensions("dimA", "dimB") productFlavors { ...

You can set the behavior of the FAB in XML. For example: <android.support.design.widget.FloatingActionButton app:layout_behavior=".MyBehavior" /> Or you can set programmatically using: CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutPara...

Use the following commands to create bookmarks and access bookmarks from within Emacs. Let us say that you are editing a file called foobar.org and suppose that you visit this file frequently to edit / view contents. It would be convenient to access this file with couple of key strokes rather than...

Items are added to a Collection by calling its .Add method: Syntax: .Add(item, [key], [before, after]) ParameterDescriptionitemThe item to store in the Collection. This can be essentially any value that a variable can be assigned to, including primitive types, arrays, objects, and Nothing.keyO...

Items are removed from a Collection by calling its .Remove method: Syntax: .Remove(index) ParameterDescriptionindexThe item to remove from the Collection. If the value passed is a numeric type or Variant with a numeric sub-type, it will be interpreted as a numeric index. If the value passed i...

The number of items in a Collection can be obtained by calling its .Count function: Syntax: .Count() Sample Usage: Public Sub Example() Dim foo As New Collection With foo .Add "One" .Add "Two" .Add "Three" .Add...

Items can be retrieved from a Collection by calling the .Item function. Syntax: .Item(index) ParameterDescriptionindexThe item to retrieve from the Collection. If the value passed is a numeric type or Variant with a numeric sub-type, it will be interpreted as a numeric index. If the value pas...

Keys Unlike a Scripting.Dictionary, a Collection does not have a method for determining if a given key exists or a way to retrieve keys that are present in the Collection. The only method to determine if a key is present is to use the error handler: Public Function KeyExistsInCollection(ByVal key...

The easiest way to clear all of the items from a Collection is to simply replace it with a new Collection and let the old one go out of scope: Public Sub Example() Dim foo As New Collection With foo .Add "One" .Add "Two" .Add "Thre...

There are multiple ways to create a multiline string in PowerShell: You can use the special characters for carriage return and/or newline manually or use the NewLine-environment variable to insert the systems "newline" value) "Hello`r`nWorld" "Hello{0}World" -f [...

Here-strings are very useful when creating multiline strings. One of the biggest benefits compared to other multiline strings are that you can use quotes without having to escape them using a backtick. Here-string Here-strings begin with @" and a linebreak and end with "@ on it's own lin...

Using variables in a string You can concatenate strings using variables inside a double-quoted string. This does not work with properties. $string1 = "Power" $string2 = "Shell" "Greetings from $string1$string2" Using the + operator You can also join strings usin...

The -Command parameter is used to specify commands to be executed on launch. It supports multiple data inputs. -Command <string> You can specify commands to executed on launch as a string. Multiple semicolon ;-separated statements may be executed. >PowerShell.exe -Command "(Get-Date...

You can specify a file to a ps1-script to execute it's content on launch using the -File parameter. Basic script MyScript.ps1 (Get-Date).ToShortDateString() "Hello World" Output: >PowerShell.exe -File Desktop\MyScript.ps1 10.09.2016 Hello World Using parameters and argument...

public static async Task PostAsync(this Uri uri, object value) { var content = new ObjectContext(value.GetType(), value, new JsonMediaTypeFormatter()); using (var client = new HttpClient()) { return await client.PostAsync(uri, content); } } . . . var uri = new ...

public static async Task<TResult> GetAnsync<TResult>(this Uri uri) { using (var client = new HttpClient()) { var message = await client.GetAsync(uri); if (!message.IsSuccessStatusCode) throw new Exception(); return message.ReadAsAsyn...

To use default values with **kwargs def fun(**kwargs): print kwargs.get('value', 0) fun() # print 0 fun(value=1) # print 1

from py2neo import authenticate, Graph, Node, Relationship authenticate("localhost:7474", "neo4j", "<pass>") graph = Graph() You have to make sure your Neo4j Database exists at localhost:7474 with the appropriate credentials. the graph object is your interfa...

results = News.objects.todays_news() for r in results: article = graph.merge_one("NewsArticle", "news_id", r) article.properties["title"] = results[r]['news_title'] article.properties["timestamp"] = results[r]['news_timestamp'] article.pus...

results = News.objects.todays_news() for r in results: article = graph.merge_one("NewsArticle", "news_id", r) if 'LOCATION' in results[r].keys(): for loc in results[r]['LOCATION']: loc = graph.merge_one("Location", "name", loc)...