Tutorial by Examples: f

For very first step please make sure your java version is based on Oracle's JDK since the OpenJDP does not support JavaFX yet. So, go to the Oracle Java download page and download JDK suitable for your operating system and computer architecture. If you want to study Oracle's java examples, find th...

Note: examples written for PowerShell 5.1 You can create instances of Generic Classes #Nullable System.DateTime [Nullable[datetime]]$nullableDate = Get-Date -Year 2012 $nullableDate $nullableDate.GetType().FullName $nullableDate = $null $nullableDate #Normal System.DateTime [datetime]$aDa...

The first program one typically writes in any language is the "hello world" script. This example demonstrates how to write this program and debug it using Visual Studio Code (I'll refer to Visual Studio Code as VS Code from now on). Create The Project Step 1 will be to create a new proje...

This example introduces you to the basic functionality of VS Code by demonstrating how to write a "hello world" program in C++. Before continuing, make sure you have the "ms-vscode.cpptools" extension installed. Initialize the Project The first step is to create a new project. ...

Let's assume you got an html after selecting with soup.find('div', class_='base class'): from bs4 import BeautifulSoup soup = BeautifulSoup(SomePage, 'lxml') html = soup.find('div', class_='base class') print(html) <div class="base class"> <div>Sample text 1</div...

First, Lets create a dummy dataframe We assume that a customer can have n orders, an order can have m items, and items can be ordered more multiple times orders_df = pd.DataFrame() orders_df['customer_id'] = [1,1,1,1,1,2,2,3,3,3,3,3] orders_df['order_id'] = [1,1,1,2,2,3,3,4,5,6,6,6] orders_df['...

[-1, 0, 2, 4, 7, 9].where((x) => x > 2) --> [4, 7, 9]

Let's consider situation when you parse number of pages and you want to collect value from element that's optional (can be presented on one page and can be absent on another) for a paticular page. Moreover the element itself, for example, is the most ordinary element on page, in other words no spec...

An example, to remove a "Key2" key with a value of "Value2" from the hash table, using the remove operator: $hashTable = @{ Key1 = 'Value1' Key2 = 'Value2' } $hashTable.Remove("Key2", "Value2") $hashTable #Output Name ...

route/index.js import About from '@/components/About' const router = new Router({ routes: [ { path: '/', name: 'home', component: {template: "<div>Home</div>"} }, { path: '/about', component: About ...

Using arrow function as callback function can reduce lines of code. The default syntax for arrow function is () => {} This can be used as callbacks For example if we want to print all elements in an array [1,2,3,4,5] without arrow function, the code will look like this [1,2,3,4,5].forEach...