Tutorial by Examples: du

Let's create a very simple view to respond a "Hello World" template in html format. To do that go to my_project/my_app/views.py (Here we are housing our view functions) and add the following view: from django.http import HttpResponse def hello_world(request): html = "&lt...

The ConstainsKey method is the way to know if a key already exists in the Dictionary. This come in handy for data reduction. In the sample below, each time we encountner a new word, we add it as a key in the dictionary, else we increment the counter for this specific word. Dim dic As IDictionary(...

The Caesar cipher is a classic encryption method. It works by shifting the characters by a certain amount. For example, if we choose a shift of 3, A will become D and E will become H. The following text has been encrypted using a 23 shift. THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG QEB NRFZH YOL...

The names of modules follow the filesystem's hierarchical structure. With the following file layout: Foo/ ├── Baz/ │ └── Quux.hs └── Bar.hs Foo.hs Bar.hs the module headers would look like this: -- file Foo.hs module Foo where -- file Bar.hs module Bar where -- file Foo/Bar.hs m...

A typical payment flow with Stripe can be divided in two steps: Client-side, in your frontend (HTML + Javascript) code, you collect the customer's payment information using Stripe's prebuilt Checkout form or Elements form field(s). This will return a token that you then send to your server. ...

In a test you can disable animations by adding in setUp: app.launchEnvironment = ["animations": "0"] Where app is instance of XCUIApplication.

Blog.html <div data-bind="visible: isLoading()"> Loading... </div> <div data-bind="visible: !isLoading(), foreach: blogs"> <br /> <span data-bind="text: entryPostedDate"></span> <br /> <h3> ...

Dynamic Time Warping(DTW) is an algorithm for measuring similarity between two temporal sequences which may vary in speed. For instance, similarities in walking could be detected using DTW, even if one person was walking faster than the other, or if there were accelerations and decelerations during ...

A DataGridView is a control in .NET UI design, which consists of rows and columns used to arrange data. Often there is need to depict data either from a spreadsheet or database on a UI design in an application. When this data is to be shown grouped by its properties, we choose a DataGridView. In C...

theano.map and theano.scan_module.reduce are wrappers of theano_scan. They can be seen as handicapped version of scan. You can view Basic scan usage section for reference. import theano import theano.tensor as T s_x = T.ivector() s_sqr, _ = theano.map( fn = lambda x:x*x, sequences = [s...

Registration in AppDelegate import UserNotifications in didFinishLaunchingWithOptions method, UNUserNotificationCenter.current().requestAuthorization(options: [.alert,.sound,.badge]) { (granted, error) in // Here you can check Request is Granted or not. } Create and Schedule notificat...

public async Task SetProductInactiveAsync(int productId) { using (IDbConnection con = new SqlConnection("myConnectionString")) { await con.ExecuteAsync("SetProductInactive", new { id = productId }, commandType: CommandType.StoredProcedure); ...

Many of us start debugging with simple print(). Let's say we have such a class: class Abc { let a = "aa" let b = "bb" } and we have an instance of Abc as so: let abc = Abc() When we run the print() on the variable, the output is App.Abc while dump() output...

When we refer the module in the code, node first looks up the node_module folder inside the referenced folder in required statement If the module name is not relative and is not a core module, Node will try to find it inside the node_modules folder in the current directory. For instance, if you do...

One day I had a conversation with a friend of mine who uses Laravel PHP framework in his job. When I told him that Django has its own all-included HTML CRUD system, for interacting with the database, called Django admin, his eyes popped off! He told me: "It took me months to build an Admin inte...

There are two types of scripts we can leverage for running background processing on a specific, regular interval; these are the Scheduled and the Map/Reduce scripts. Note that the Map/Reduce script type is only available in SuiteScript 2.0. The Scheduled script is available for both 1.0 and 2.0. Th...

Let say you want to build your API to comply jsonapi.org specification and the result should look like: { "article": { "id": "305", "type": "articles", "attributes": { "title": "Asking Alexandria&q...

ember generate route foo --pod installing create app/pods/foo/route.js create app/pods/foo/template.hbs installing create tests/unit/pods/foo/route-test.js

Template Generic Syntax template<typename T> void f(ParamType param); f(expr); Case 1: ParamType is a Reference or Pointer, but not a Universal or Forward Reference. In this case type deduction works this way. The compiler ignores the reference part if it exists in expr. The compiler t...

C++11 Type deduction using the auto keyword works almost the same as Template Type Deduction. Below are a few examples: auto x = 27; // (x is neither a pointer nor a reference), x's type is int const auto cx = x; // (cx is neither a pointer nor a reference), cs's type is const int ...