Tutorial by Examples: ar

There are different variable types for different purposes. In Visual Basic 6 the following variable types are available: Array Boolean Byte Currency Date Double Integer Long Single String Variant You declare a variable by using the Dim keyword: Dim RandomNumber As Integer If you ...

Monthwise difference between two dates(timestamp) select ( (DATE_PART('year', AgeonDate) - DATE_PART('year', tmpdate)) * 12 + (DATE_PART('month', AgeonDate) - DATE_PART('month', tmpdate)) ) from dbo."Table1" Yearwise difference between two dates...

The following table compares the features available(1) in EF Core and EF6.x. It is intended to give a high level comparison and does not list every feature, or attempt to give details on possible differences between how the same feature works. Creating a ModelEF6.xEF Core 1.0.0Basic modelling (cla...

Dim cars(2) cars(0) = "Ford" cars(1) = "Audi" cars(2) = "Prius"

Dim cars() Redim cars(0) 'Give it 1 entry Dim tmp tmp = "Ford" 'ubound(arrayvariable) is the count of array size. 'in this case, it would be 1, since there is 1 entry. cars(ubound(cars)) = tmp 'cars(0) Redim preserve cars(ubound(cars)+1)

Dim cars Dim filefullname : filefullname = "C:\testenv\test.txt" 'If you can, create an instaneous read for text file data for better memory handling. 'Unless it's a large file and that's impossible. cars = Split(CreateObject("Scripting.FileSystemObject").OpenTextFile(filefu...

Aliases are named shortcuts of commands, one can define and use in interactive bash instances. They are held in an associative array named BASH_ALIASES. To use this var in a script, it must be run within an interactive shell #!/bin/bash -li # note the -li above! -l makes this behave like a login s...

Create In order to perform a Create operation via REST, you must perform the following actions: Create an HTTP request using the POST verb. Use the service URL of the list to which you want to add an entity as the target for the POST. Set the content type to application/json. Serialize the JSON...

All needed usage shown with this snippet: #!/usr/bin/env bash declare -A assoc_array=([key_string]=value \ [one]="something" \ [two]="another thing" ...

The Rabin–Karp algorithm or Karp–Rabin algorithm is a string searching algorithm that uses hashing to find any one of a set of pattern strings in a text.Its average and best case running time is O(n+m) in space O(p), but its worst-case time is O(nm) where n is the length of the text and m is the le...

In vbscript, an object doesn't necessarily need a designated type. Similar to C#'s var variable. Dim ExampleString1 As String Dim ExampleString2

Given a text file test.txt: Ford Jeep Honda The following script is processing this text file: 'Read in File Data to an array, separate by newline vb equivalent (vbcrlf) Dim car, cars Dim filefullname : filefullname = "C:\testenv\test.txt" cars = Split(CreateObject("Scriptin...

'Note: I use this method to extract non-html data in extracted GET telnet results 'This example effectively grabs every other vehicle that have start and finish 'characters, which in this case is "/". 'Resulting in an array like this: 'extractedData(0) = "/Jeep" 'extractedD...

Dim mdArray(2,3) mdArray(0, 0) = "test1" mdArray(0, 1) = "test2" mdArray(0, 2) = "test3" mdArray(0, 3) = "test4" mdArray(1, 0) = "test5" mdArray(1, 1) = "test6" mdArray(1, 2) = "test7" mdArray(1, 3) = "test8" md...

Dim mddArray() ReDim mddArray(0) Dim ti, testinc: testinc = "test": ti = 1 For i = 0 To 4 Dim tmpArray(): ReDim tmpArray(0) For j = 0 To 3 tmpArray(UBound(tmpArray)) = testinc & ti ti = ti + 1 ReDim Preserve tmpArray(UBound(tmpArray) + 1) Ne...

When the last command in an interactive bash instance is done, the evaluated PS1 variable is displayes. Before actually displaying PS1 bash looks whether the PROMPT_COMMAND is set. This value of this var must be a callable program or script. If this var is set this program/script is called BEFORE th...

Display a two dimensional (2D) array on the axes. import numpy as np from matplotlib.pyplot import imshow, show, colorbar image = np.random.rand(4,4) imshow(image) colorbar() show()

The whole point of MVVM is to separate layers containing logic from the view layer. On Android we can use the DataBinding Library to help us with this and make most of our logic Unit-testable without worrying about Android dependencies. In this example I'll show the central components for a stupid...

typealias SuccessHandler = (NSURLSessionDataTask, AnyObject?) -> Void This code block creates a type alias named SuccessHandler, just in the same way var string = "" creates a variable with the name string. Now whenever you use SuccessHandler, for example: func example(_ handler: S...

A feature that has near zero variance is a good candidate for removal. You can manually detect numerical variance below your own threshold: data("GermanCredit") variances<-apply(GermanCredit, 2, var) variances[which(variances<=0.0025)] Or, you can use the caret package to find...