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Swift: var centralManager:CBCentralManager! centralManager = CBCentralManager(delegate: self, queue: nil) Objective C: @property (nonatomic, strong) CBCentralManager *centralManager; centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];

Swift: var centralManager:CBCentralManager! centralManager = CBCentralManager(delegate: self, queue: nil, options: [CBCentralManagerOptionRestoreIdentifierKey : "com.companyname.appname.central"]) Objective C: @property (nonatomic, strong) CBCentralManager *centralManager; self....

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<div class="container"> <div class="row"> <div class="col s5"> <div class="card"> <div class="card-image"> <img src="image.png"> ...

“Adapter” as the name suggests is the object which lets two mutually incompatible interfaces communicate with each other. For example: if you buy a Iphone 8 (or any other Apple product) you need alot of adapters. Because the default interface does not support audio jac or USB. With these a...

Each individual connection can be accessed via the connection method on the DB facade, even when there are multiple connections defined. The name passed to the connection method should correspond to one of the connections listed in the config/database.php configuration file: $users = DB::connection...

v6.0.0 Promises are a tool for async programming. In JavaScript promises are known for their then methods. Promises have two main states 'pending' and 'settled'. Once a promise is 'settled' it cannot go back to 'pending'. This means that promises are mostly good for events that only occur once. The...

Replace operator: The -replace operator replaces a pattern in an input value using a regular expression. This operator uses two arguments (separated by a comma): a regular expression pattern and its replacement value (which is optional and an empty string by default). "The rain in Seattle&quo...

I would like to point out that we rotate left when the shifting value is negative and we rotate right when the value is positive. public static void Main() { int[] array = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; int shiftCount = 1; Rotate(ref array, shiftCount); ...

The other examples may be the best and most stable way to get a version number into an application statically. This answer proposes an alternative showing how to do it dynamically during runtime, using the maven maven-model library. Add the dependency: <dependency> <groupId>org.apac...

The size of any object or member subobject is required to be at least 1 even if the type is an empty class type (that is, a class or struct that has no non-static data members), in order to be able to guarantee that the addresses of distinct objects of the same type are always distinct. However, ba...

Design Patterns provide solutions to the commonly occurring problems in software design. The design patterns were first introduced by GoF(Gang of Four) where they described the common patterns as problems which occur over and over again and solutions to those problems. Design patterns have four ess...

The GLib.Task provide low-level API for performing asynchronous operations. var task = new GLib.Task (null, null, (obj, result) => { try { var ret = result.propagate_boolean (); } catch (Error err) { // handler err... } }); Later in a thread or a callback: t...

it often happened some rows with format issue, data type issue rejected by copy command while try load it by copy command. the query return succeed but some of data rejected. To do troubleshooting save Rejected Data and Exceptions COPY large_tbl FROM :file1 ON site01, :file2 O...

Once the dist directory is ready with your production built bundles. Just open the dist directory and open the command prompt type the following command to create the war file to deploy your project on apache tomcat server. jar cvf dist.war . Once the above jar commands gets executed. It wou...

Cut/Copy the dist.war file from dist directory and place it in apache tomcat webapp directory. Go to apache tomcat bin folder and double click on startup.bat file. Now tomcat server will execute dist.war file and startup the tomcat catalina server. Once the tomcat catalina server gets started o...

interface IArrayWrapper { public function getProperties(): array; public function has(string $name): bool; public function __toString(); // ... }; /** * Lightweight in-place data wrapper. * Demonstrates usage of anonymous class in conjunction with interface. * * Pro...

Install virtualenv via pip / (apt-get): pip install virtualenv OR apt-get install python-virtualenv Note: In case you are getting permission issues, use sudo.

The window.postMessage() method together with its relative event handler window.onmessage can be safely used to enable cross-origin communication. The postMessage() method of the target window can be called to send a message to another window, which will be able to intercept it with its onmessage e...

&& has precedence over ||, this means that parentheses are placed to evaluate what would be evaluated together. c++ uses short-circuit evaluation in && and || to not do unnecessary executions. If the left hand side of || returns true the right hand side does not need to be evaluate...