Tutorial by Examples: l

Once user clicks on a push notification, the following callback function will be called. You can parse the JSON to get any specific info sent from backend that will helps you in deep linking: Swift func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : ...
Assume you want to create an extension property that is expensive to compute. Thus you would like to cache the computation, by using the lazy property delegate and refer to current instance (this), but you cannot do it, as explained in the Kotlin issues KT-9686 and KT-13053. However, there is an off...
cURL is the name of the project which depicts: 'Client for URLs' and also be called as Client URL Request Library it combines two separate packages: curl and libcurl. curl is a command line tool used to get documents/files from or send documents to a server, using any of the supported protocol...
Python 2.x2.3 python -m SimpleHTTPServer 9000 Python 3.x3.0 python -m http.server 9000 Running this command serves the files of the current directory at port 9000. If no argument is provided as port number then server will run on default port 8000. The -m flag will search sys.path for ...
A stream is closed by sending a closing </stream> tag. After the closing stream tag is sent, no more data should be sent on the stream (even in response to data received from the other party). Before closing the connection, the sending entity should wait for a response </stream> tag to g...
The WHILE loop can be used as an alternative to CURSORS. The following example will print numbers from 0 to 99. DECLARE @i int = 0; WHILE(@i < 100) BEGIN PRINT @i; SET @i = @i+1 END
ToLookup returns a data structure that allows indexing. It is an extension method. It produces an ILookup instance that can be indexed or enumerated using a foreach-loop. The entries are combined into groupings at each key. - dotnetperls string[] array = { "one", "two", &...
Displaying all the logs from the default buffer on the Command Line can be accomplished by: adb logcat This command will show you all the logs from the device's main buffer. Notice that if you use it for the first time, you'll get a lot of information, an enormous stream of data. So you may want...
To install dplyr simply type in the R console. install.packages("dplyr") And then to load dplyr, type library("dplyr") It's also possible to install the latest development version from Github with: if (packageVersion("devtools") < 1.6) { install.packages...
Python Windows The easiest way to install GTK3 for Python is by using PyGObject for Windows. It offers an installer that installs most things you need to develop GTK appilcations. The number of options the PyGObject installer offers can be daunting, but for most GTK projects the only option you h...
Use tuples in a switch let switchTuple = (firstCase: true, secondCase: false) switch switchTuple { case (true, false): // do something case (true, true): // do something case (false, true): // do something case (false, false): // do something } Or in combina...
git log --stat Example: commit 4ded994d7fc501451fa6e233361887a2365b91d1 Author: Manassés Souza <[email protected]> Date: Mon Jun 6 21:32:30 2016 -0300 MercadoLibre java-sdk dependency mltracking-poc/.gitignore | 1 + mltracking-poc/pom.xml | 14 ++++++++++++-- ...
This error happens if a unknown object is used. Variables Not compiling: #include <iostream> int main(int argc, char *argv[]) { { int i = 2; } std::cout << i << std::endl; // i is not in the scope of the main function return 0; } Fix: #i...
The compiler can't find a file (a source file uses #include "someFile.hpp"). qmake: INCLUDEPATH += dir/Of/File cmake: include_directories(dir/Of/File) g++ call: g++ -o main main.cpp -Idir/Of/File
An interesting but rather unknown usage of Active Patterns in F# is that they can be used to validate and transform function arguments. Consider the classic way to do argument validation: // val f : string option -> string option -> string let f v u = let v = defaultArg v "Hello&quo...
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....
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...
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]); }

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