Tutorial by Examples: le

Const baseString As String = "Hello World" Dim charLength As Long charLength = Len(baseString) 'charlength = 11

Const baseString As String = "Hello World" Dim byteLength As Long byteLength = LenB(baseString) 'byteLength = 22

When checking if a string is zero-length, it is better practice, and more efficient, to inspect the length of the string rather than comparing the string to an empty string. Const myString As String = vbNullString 'Prefer this method when checking if myString is a zero-length string If Len(mySt...

One common scenario is to wait for a number of requests to finish before continuing. This can be accomplished using the forkJoin method. In the following example, forkJoin is used to call two methods that return Observables. The callback specified in the .subscribe method will be called when both O...

The purpose of this example is to show how we can realize the Strategy pattern using Java 8 functional interfaces. We will start with a simple use case codes in classic Java, and then recode it in the Java 8 way. The example problem we using is a family of algorithms (strategies) that describe dif...

from module.submodule import function This imports function from module.submodule.

Use defdelegate to define functions that delegate to functions of the same name defined in another module: defmodule Math do defdelegate pi, to: :math end iex> Math.pi 3.141592653589793

Pseudo-elements are often used to change the look of lists (mostly for unordered lists, ul). The first step is to remove the default list bullets: ul { list-style-type: none; } Then you add the custom styling. In this example, we will create gradient boxes for bullets. li:before { conte...

The default gnuplot command plot (also only p) plot dataset with columns, of the form of the data_set.dat file below. # Prototype of a gnuplot data set # data_set.dat # X - X^2 - 2*X - Random 0 0 0 5 1 1 2 15 1.4142 2 2.8284 1 2 ...

You can use the System.IO.File.ReadAllText function to read the entire contents of a file into a string. string text = System.IO.File.ReadAllText(@"C:\MyFolder\MyTextFile.txt"); You can also read a file as an array of lines using the System.IO.File.ReadAllLines function: string[] line...

The System.IO.StreamWriter class: Implements a TextWriter for writing characters to a stream in a particular encoding. Using the WriteLine method, you can write content line-by-line to a file. Notice the use of the using keyword which makes sure the StreamWriter object is disposed as soon as ...

You can use the System.IO.File.WriteAllText function to write a string to a file. string text = "String that will be stored in the file"; System.IO.File.WriteAllText(@"C:\MyFolder\OutputFile.txt", text); You can also use the System.IO.File.WriteAllLines function which receiv...

A simple example of using multiple processes would be two processes (workers) that are executed separately. In the following example, two processes are started: countUp() counts 1 up, every second. countDown() counts 1 down, every second. import multiprocessing import time from random impor...

import UIKit import WebKit class ViewController: UIViewController, UISearchBarDelegate, WKNavigationDelegate, WKUIDelegate { var searchbar: UISearchBar! //All web-browsers have a search-bar. var webView: WKWebView! //The WKWebView we'll use. var toolbar: UIToolbar! //Toolb...

To ensure that our collection can be iterated using iterator or for-each loop, we have to take care of following steps: The stuff we want to iterate upon has to be Iterable and expose iterator(). Design a java.util.Iterator by overriding hasNext(), next() and remove(). I have added a simple ...

Read the accelerometer Sensor with precision. This example allocates memory: void Update() { //Get Precise Accelerometer values Vector3 accelValue = preciseAccelValue(); Debug.Log("PRECISE X: " + accelValue.x + " Y: " + accelValue.y + " Z: " + acc...

int n = 0; while (n < 5) { Console.WriteLine(n); n++; } Output: 0 1 2 3 4 IEnumerators can be iterated with a while loop: // Call a custom method that takes a count, and returns an IEnumerator for a list // of strings with the names of theh largest city metro areas. ...

It is similar to a while loop, except that it tests the condition at the end of the loop body. The Do - While loop executes the loop once irrespective of whether the condition is true or not. int[] numbers = new int[] { 6, 7, 8, 10 }; // Sum values from the array until we get a total that's ...

[ alias ] ignored = ! git ls-files --others --ignored --exclude-standard --directory \ && git ls-files --others -i --exclude-standard Shows one line per file, so you can grep (only directories): $ git ignored | grep '/$' .yardoc/ doc/ Or count: ~$ git ignored | ...

Sometimes you may want maintain versions of a git repository on machines that have no network connection. Bundles allow you to package git objects and references in a repository on one machine and import those into a repository on another. git tag 2016_07_24 git bundle create changes_between_tags...