Tutorial by Examples: le

Function EnableShift() 'This function enables the SHIFT key at startup. This action causes 'the Autoexec macro and the Startup properties to be bypassed 'if the user holds down the SHIFT key when the user opens the database. On Error GoTo errEnableShift Dim db As DAO.Database Dim p...

Tuples can be compared based on their elements. As an example, an enumerable whose elements are of type Tuple can be sorted based on comparisons operators defined on a specified element: List<Tuple<int, string>> list = new List<Tuple<int, string>>(); list.Add(new Tuple<...

In its most basic form, an object that implements IEnumerable represents a series of objects. The objects in question can be iterated using the c# foreach keyword. In the example below, the object sequenceOfNumbers implements IEnumerable. It represents a series of integers. The foreach loop iterate...

Projecting an enumeration allows you to extract specific members of each object, to extract all the details, or to compute values for each object Synonyms: Select-Object select Selecting a subset of the properties: $dir = dir "C:\MyFolder" $dir | Select-Object Name, FullName, Att...

raw_data = {'first_name': ['John', 'Jane', 'Jim'], 'last_name': ['Doe', 'Smith', 'Jones'], 'department': ['Accounting', 'Sales', 'Engineering'],} df = pd.DataFrame(raw_data,columns=raw_data.keys()) df.to_csv('data_file.csv')

The cx and cy values designate the location of the center of the circle. The r attribute specifies the size of the radius of the circle. <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <circle cx="40" cy="40&q...

class Car { public position: number = 0; private speed: number = 42; move() { this.position += this.speed; } } In this example, we declare a simple class Car. The class has three members: a private property speed, a public property position and a public met...

public class Singleton { private static final Singleton INSTANCE = new Singleton(); private Singleton() {} public static Singleton getInstance() { return INSTANCE; } } It can be argued that this example is effectively lazy initialization. Section 12.4.1 of ...

Start with an iterable which needs to be grouped lst = [("a", 5, 6), ("b", 2, 4), ("a", 2, 5), ("c", 2, 6)] Generate the grouped generator, grouping by the second element in each tuple: def testGroupBy(lst): groups = itertools.groupby(lst, key=lambda...

HTML <p>My shadow always follows me.</p> CSS p { -webkit-filter: drop-shadow(10px 10px 1px green); filter: drop-shadow(10px 10px 1px green); } Result

To use multiple filters, separate each value with a space. HTML <img src='donald-duck.png' alt='Donald Duck' title='Donald Duck' /> CSS img { -webkit-filter: brightness(200%) grayscale(100%) sepia(100%) invert(100%); filter: brightness(200%) grayscale(100%) sepia(100%) invert(1...

hash( (1, 2) ) # ok hash( ([], {"hello"}) # not ok, since lists and sets are not hashabe Thus a tuple can be put inside a set or as a key in a dict only if each of its elements can. { (1, 2) } # ok { ([], {"hello"}) ) # not ok

Command: adb devices Result example: List of devices attached emulator-5554 device PhoneRT45Fr54 offline 123.454.67.45 no device First column - device serial number Second column - connection status Android documentation

In Python 3.x all classes are new-style classes; when defining a new class python implicitly makes it inherit from object. As such, specifying object in a class definition is a completely optional: Python 3.x3.0 class X: pass class Y(object): pass Both of these classes now contain object in ...

A Simple FXML document outlining an AnchorPane containing a button and a label node: <?xml version="1.0" encoding="UTF-8"?> <?import java.lang.*?> <?import java.util.*?> <?import javafx.scene.*?> <?import javafx.scene.control.*?> <?import ...

Arrays You can iterate over nested arrays: [[1, 2], [3, 4]].each { |(a, b)| p "a: #{ a }", "b: #{ b }" } The following syntax is allowed too: [[1, 2], [3, 4]].each { |a, b| "a: #{ a }", "b: #{ b }" } Will produce: "a: 1" "b: 2" ...

To duplicate a table, simply do the following: CREATE TABLE newtable LIKE oldtable; INSERT newtable SELECT * FROM oldtable;

Add days into a dateTime object. DateTime today = DateTime.Now; DateTime answer = today.AddDays(36); Console.WriteLine("Today: {0:dddd}", today); Console.WriteLine("36 days from today: {0:dddd}", answer); You also can subtract days passing a negative value: DateTime today...

double[] hours = {.08333, .16667, .25, .33333, .5, .66667, 1, 2, 29, 30, 31, 90, 365}; DateTime dateValue = new DateTime(2009, 3, 1, 12, 0, 0); foreach (double hour in hours) Console.WriteLine("{0} + {1} hour(s) = {2}", dateValue, hour, ...

string dateFormat = "MM/dd/yyyy hh:mm:ss.fffffff"; DateTime date1 = new DateTime(2010, 9, 8, 16, 0, 0); Console.WriteLine("Original date: {0} ({1:N0} ticks)\n", date1.ToString(dateFormat), date1.Ticks); DateTime date2 = date1.AddMilliseconds(1); Console....