Tutorial by Examples: f

Dojo received a new loader in Dojo 1.7 to accommodate for the toolkit's new AMD module format. This new loader added a few new configuration options that are crucial to defining packages, maps, and more. For details on the loader, see the Advanced AMD Usage tutorial. Important loader configuration p...

You can realize a modal bottom sheets using a BottomSheetDialogFragment. The BottomSheetDialogFragment is a modal bottom sheet. This is a version of DialogFragment that shows a bottom sheet using BottomSheetDialog instead of a floating dialog. Just define the fragment: public class MyBottomSheet...

Files: To determine if a file exists, simply pass the filename to the Dir$ function and test to see if it returns a result. Note that Dir$ supports wild-cards, so to test for a specific file, the passed pathName should to be tested to ensure that it does not contain them. The sample below raises an...

NOTE: For brevity, the examples below use the FolderExists function from the Determining If Folders and Files Exist example in this topic. The MkDir statement can be used to create a new folder. It accepts paths containing drive letters (C:\Foo), UNC names (\\Server\Foo), relative paths (..\Foo...

This is useful if you use rust in the backend and elm on the front end enum Complex{ Message(String), Size(u64) } let c1 = Complex::Message("hi"); let c2 = Complex::Size(1024u64); The encoded Json from rust will be: c1: {"variant": "Message", ...

The Runtime.exec(String ...) and Runtime.exec(String) methods allow you to execute a command as an external process1. In the first version, you supply the command name and the command arguments as separate elements of the string array, and the Java runtime requests the OS runtime system to start th...

Consider the following list comprehension Python 2.x2.7 i = 0 a = [i for i in range(3)] print(i) # Outputs 2 This occurs only in Python 2 due to the fact that the list comprehension “leaks” the loop control variable into the surrounding scope (source). This behavior can lead to hard-to-find...

When you really need to script ssh connection, piping the password into the ssh command does not work (echo passw0rd | ssh host). It is because the password is not read from standard input, but directly from TTY (teleprinter, teletypewriter, Teletype for historical reasons). But there is sshpass to...

A table can be joined onto itself in what is known as a self join, combining records in the table with other records in the same table. Self joins are typically used in queries where a hierarchy in the table's columns is defined. Consider the sample data in a table called Employees: IDNameBoss_ID1...

These types do not inherit from Array<T> to avoid boxing, however, they have the same attributes and methods. Kotlin typeFactory functionJVM typeBooleanArraybooleanArrayOf(true, false)boolean[]ByteArraybyteArrayOf(1, 2, 3)byte[]CharArraycharArrayOf('a', 'b', 'c')char[]DoubleArraydoubleArrayOf...

# creates a function with no arguments, which returns 3 get_three = () -> return 3 # same as above get_three = -> 3 # creates a function with arguments add_three = (num) -> num + 3 # multiple arguments, etc. add = (a, b) -> a + b

// all variables `s` have the type `String` let s = "hi".to_string(); // Generic way to convert into `String`. This works // for all types that implement `Display`. let s = "hi".to_owned(); // Clearly states the intend of obtaining an owned obje...

We can define a function to perform function composition using anonymous function syntax: f ∘ g = x -> f(g(x)) Note that this definition is equivalent to each of the following definitions: ∘(f, g) = x -> f(g(x)) or function ∘(f, g) x -> f(g(x)) end recalling that in Julia,...

Theorem my_first_theorem : 1 + 1 = 2. Proof. reflexivity. Qed. Try it in your browser.

Direct loop foreach ($colors as $color) { echo "I am the color $color<br>"; } Loop with keys $foods = ['healthy' => 'Apples', 'bad' => 'Ice Cream']; foreach ($foods as $key => $food) { echo "Eating $food is $key"; } Loop by reference In the fo...

Profiles permit the programmer to organize maps into classes, enhancing code readability and maintainability. Any number of profiles can be created, and added to one or more configurations as needed. Profiles can be used with both the static and instance-based APIs. public class User { public...

Often it is useful to be able to load all of the profiles in one or more assemblies into a configuration. AutoMapper provides the method AddProfiles method, which has several overloads that allow profiles to be loaded by passing the Assembly, specifying the assembly name, or specifying a type contai...

If there is no need for frontend in your next project, you can run sails new with additional flag --no-frontend. sails new NameOfProject --no-frontend This will generate everything needed for backend and will omit view, assets and grunt files. More about command line and sails-new: http://sails...

The following configuration options should be called on a Rails::Railtie object config.after_initialize: Takes a block which will be run after rails has initialized the application. config.asset_host: This sets the host for the assets. This is useful when using a Content Delivery Network. This i...

The following configuration options can be used for configuring assets config.assets.enabled: Determines whether the asset pipeline is enabled. This defaults to true config.assets.raise_runtime_errors: This enables runtime error checking. It's useful for development mode config.assets.compress:...