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F# uses the type keyword to create different kind of types. Type aliases Discriminated union types Record types Interface types Class types Struct types Examples with equivalent C# code where possible: // Equivalent C#: // using IntAliasType = System.Int32; type IntAliasType = int // ...

A container will stop if no command is running on the foreground. Using the -t option will keep the container from stopping, even when detached with the -d option. docker run -t -d debian bash

docker stop mynginx Additionally, the container id can also be used to stop the container instead of its name. This will stop a running container by sending the SIGTERM signal and then the SIGKILL signal if necessary. Further, the kill command can be used to immediately send a SIGKILL or any ot...

eof returns true only after reading the end of file. It does NOT indicate that the next read will be the end of stream. while (!f.eof()) { // Everything is OK f >> buffer; // What if *only* now the eof / fail bit is set? /* Use `buffer` */ } You could correctly write: ...

Simply presenting a window is easy with GTK and Python. The example below is based off the Python GTK3 Tutorial, which you should read if you are a beginner in GUI programming or GTK. import gi gi.require_version('Gtk', '3.0') from gi.repository import Gtk # Set up the Gtk window win = Gt...

You can specify different dependencies for each platforms: "net45": { "frameworkAssemblies": { "System.Linq": "4.1.0" } }, "netstandard1.3": { "dependencies": { "NETStandard.Library": "1.6....

Outline is a line that goes around the element, outside of the border. In contrast to border, outlines do not take any space in the box model. So adding an outline to an element does not affect the position of the element or other elements. In addition, outlines can be non-rectangular in some brows...

Using Derived column we can prepare the input. We will provide yyyy-MM-dd to the final conversion: Year: (DT_STR,4,1252)(DataDate / 10000) Month: (DT_STR,2,1252)(DataDate / 100 % 100) Day: (DT_STR,2,1252)(DataDate % 100) All together: (DT_DBDATE)((DT_STR,4,1252)(DataDate / 10000) + "-&q...

Using c# or vb.net code the conversion is even more simple. An output column is needed because we type can not be changed on the fly, alternative is adding an input column on forehand make it ReadWrite. Next code will fill the new column. public override void Input0_ProcessInputRow(Input0Buffer ...

int arr[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; int i; for(i = 0; i < 10; i++) { printf("%d\n", arr[i]); }

int arr[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; int i = 0; while(i < 10) { printf("%d\n", arr[i]); i++; }

int arr[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; int i = 0; do { printf("%d\n", arr[i]); i++; } while (i < 10);

int [] arr = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; for(int value : arr) { System.out.print(value); System.out.print("\n"); } *Note that the Java foreach is just a for loop with different syntax. Some languages do this and some such as C# use foreach.

int sumArrayRecursive(int * arr, int index, int arraySize) { if (index == (arraySize - 1)) { return arr[index]; } return arr[index] + sumArrayRecursive(arr, index + 1, arraySize); }

var numbers = [1,2,3,4,5]; var squares = numbers.map(function(x) { return x*x; }); // squares is [1,4,9,16,25]

var arr = [1, 2, 3, 4, 5]; var sum = arr.reduce((prev, curr) => prev + curr); console.log(sum); // Output: 15 You can also specify an initial value var arr = [1, 2, 3, 4, 5]; var sum = arr.reduce(function (previousValue, currentValue, currentIndex, array) { return previousValue + cur...

Install node modules npm install express npm install socket.io Node.js server const express = require('express'); const app = express(); const server = app.listen(3000,console.log("Socket.io Hello World server started!")); const io = require('socket.io')(server); io.on('connec...

Although this works only for WebKit based browsers, this is helpful: /* ----------- Non-Retina Screens ----------- */ @media screen and (min-width: 1200px) and (max-width: 1600px) and (-webkit-min-device-pixel-ratio: 1) { } /* ----------- Retina Screens ----------- */ @media scre...

When an object is exposed to the template context, its arguments-less methods are available. This is useful when these functions are "getters". But it can be hazardeous if these methods alter some data or have some side effects. Eventhough you likely trust the template writer, he may not b...

Classes have a local scope during definition, but functions inside the class do not use that scope when looking up names. Because lambdas are functions, and comprehensions are implemented using function scope, this can lead to some surprising behavior. a = 'global' class Fred: a = 'class' ...