Tutorial by Examples: d

You have 2 ways to debug the popup window. Both ways are by using the Chrome DevTools. Option 1: Right click the extension's action button, and choose Inspect popup Option 2: Open the popup window, directly in your browser as a tab. For example, if you extension id is abcdefghijkmnop, and your ...

The pattern can be illustrated by the following pseudocode: product = new Product() product.name = "Some Book" product.price = 123.45 product.save() The following SQL would be a result: INSERT INTO products (name, price) VALUES ('Some Book', 123.45);

Writing and executing a simple TestNG program is mainly 3 step process. Code - write business logic of your test and annotate it with TestNG annotations Configure - add information of your test in testng.xml or in build.xml Run TestNG - it can be invoked from command line, ANT, IDE like Eclipse...

The following picture illustrates how component communication should work. The picture comes from The Progressive Framework slides of Evan You (Developer of VueJS). Here is an example of how it works : DEMO HTML <script type="x-template" id="message-box"> <inp...

You might have realized that $emit is scoped to the component that is emitting the event. That's a problem when you want to communicate between components far from one another in the component tree. Note: In Vue1 you coud use $dispatch or $broadcast, but not in Vue2. The reason being that it doesn'...

This code places the hint text at form load and manipulates it as follows: C# private void Form_load(object sender, EventArgs e) { textBox.Text = "Place Holder text..."; } private void textBox_Enter(object sender, EventArgs e) { if(textBox.Text == "Place Holder text....

Project is following the structure from the Angular2 Quickstart guide here. RootOfProject | +-- app | |-- app.component.ts | |-- main.ts | |-- pipeUser.component.ts | \-- sanitize.pipe.ts | |-- index.html |-- main.html |-- pipe.html main.ts import { bootstrap } from '@angu...

UWP applications can easily store simple settings in a key/value store locally or even in the cloud so your application or a game can share settings between different user's devices. Following data types can be used for settings: UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double...

Example of Receiver Operating Characteristic (ROC) metric to evaluate classifier output quality. ROC curves typically feature true positive rate on the Y axis, and false positive rate on the X axis. This means that the top left corner of the plot is the “ideal” point - a false positive rate of zero...

In most cases, the range_lookup is used as FALSE (an exact match). The default for this parameter is TRUE - it is less commonly used in this form, but this example shows one usecase. A supermarket gives a bonus based on the customers monthly spend. If the customer spends 250 EUR or more in a mon...

Double-quotes preserve all characters other than " terminator, $ expansions, ` command substitutions, and \ escapes of any of these characters (and newline removal). Note that the literal \ is preserved unless followed by a special character. General escapes: $ printf "\"quoted str...

For accessing Cassandra cassandra-driver module from DataStax can be used. It supports all the features and can be easily configured. const cassandra = require("cassandra-driver"); const clientOptions = { contactPoints: ["host1", "host2"], keyspace: "te...

This basic Lucene example creates a simple index, and searches on it. Note: RAMDirectory creates a memory-resident index, and is handy for experimenting and testing, but in practice most people will need to have an index stored in the file system (see FSDirectory.open). import java.io.IOException...

Sometimes, it can be difficult to find the mathematical symbol you need. There are several options here. The first (and quickest) is to use Detexify, where you draw the symbol you'd like, and it tries to find what you want, like as shown below: Another option is to use the comprehensive LaTeX sym...

Some of the most common commands include: Fractions and Square Roots: For fractions, use \frac {numerator}{denominator}. For square roots, use \sqrt[root]{number}. Greek letters: use the commands given in the table below: Operators: \leq gives the less than or equal to symbol, \geq gives ...

//Add value to Isolated Storage Settings IsolatedStorageSettings.ApplicationSettings.Add("Key", "Value");

string setting = IsolatedStorageSettings.ApplicationSettings["Key"] as string;

By default, Jsoup will display only block-level elements with a trailing line break. Inline elements are displayed without a line break. Given a body fragment, with inline elements: <select name="menu"> <option value="foo">foo</option> <option va...

The gridspec package allows more control over the placement of subplots. It makes it much easier to control the margins of the plots and the spacing between the individual subplots. In addition, it allows for different sized axes on the same figure by defining axes which take up multiple grid loca...

TikZ implements several algorithms for automatic graph layouts (requires LuaLaTeX). \documentclass{article} \usepackage{tikz} \usetikzlibrary{graphs,graphdrawing,quotes} \usegdlibrary{force} \begin{document} \begin{tikzpicture} \graph[spring layout] { A -> ["1"...