Tutorial by Examples: l

Expanding the parameter pack of indices in a comma expression with a value creates a copy of the value for each of the indices. Sadly, gcc and clang think the index has no effect and warn about it (gcc can be silenced by casting the index to void): #include <algorithm> #include <array>...

Declaring the splat is useful for reusing sets of parameters multiple times or with slight variations: $splat = @{ Class = "Win32_SystemEnclosure" Property = "Manufacturer" ErrorAction = "Stop" } Get-WmiObject -ComputerName $env:COMPUTERNAME @splat Get...

CSS variables cascade in much the same way as other properties, and can be restated safely. You can define variables multiple times and only the definition with the highest specificity will apply to the element selected. Assuming this HTML: <a class="button">Button Green</a>...

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"]; NSURLRequest *r...

import AlamofireImage Alamofire.request("https://httpbin.org/image/png").responseImage { response in debugPrint(response) print(response.request) print(response.response) debugPrint(response.result) if let image = response.result.value { print(&quot...

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:[NSURL ...

HTTPS server with http location: server { listen 443; root /var/www/ location / { ... } location /http { rewrite ^ http://$host$request_uri? permanent; } } HTTP server redirects to HTTPS except one location: server { root /var/www/ locat...

Below example shows how to change the hyperlink for "ID" and "Title(LinkTitle)" field inside the list view using CSR. Step1 : Create a JS file and paste below code (function () { function registerRenderer() { var ctxForm = {}; ctxForm.Templates = {}...

This example shows how to hide a "Date" field from the SharePoint list view using CSR. (function () { function RemoveFields(ctx) { var fieldName = "Date"; // here Date is field or column name to be hide var header = document.querySelectorAll("[d...

The QList class is a template class that provides lists. It stores items in a list that provides fast index-based access and index-based insertions and removals. To insert items into the list, you can use operator<<(), insert(), append() or prepend(). For example: operator<<() QList&l...

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11) SET(PROJ_NAME "myproject") PROJECT(${PROJ_NAME}) # Configuration types SET(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE) IF(DEFINED CMAKE_BUILD_TYPE AND CMAKE_VERSION VERSION_GREATER "2.8"...

What is PS1 PS1 denotes Prompt String 1. It is the one of the prompt available in Linux/UNIX shell. When you open your terminal, it will display the content defined in PS1 variable in your bash prompt. In order to add branch name to bash prompt we have to edit the PS1 variable(set value of PS1 in ~...

When HTTP requests arrive faster than your application can process them, they can form a large backlog on a number of routers. When the backlog on a particular router passes a threshold, the router determines that your application isn’t keeping up with its incoming request volume. You’ll see an H11 ...

This error is thrown when a process in your web dyno accepts a connection, but then closes the socket without writing anything to it. 2010-10-06T21:51:37-07:00 heroku[router]: at=error code=H13 desc="Connection closed without response" method=GET path="/" host=myapp.herokuapp.co...

The dyno did not send a full response and was terminated due to 55 seconds of inactivity. For example, the response indicated a Content-Length of 50 bytes which were not sent in time. 2010-10-06T21:51:37-07:00 heroku[router]: at=error code=H15 desc="Idle connection" method=GET path="...

Vibrate the device for 100ms: window.navigator.vibrate(100); or window.navigator.vibrate([100]);

OS X Download and run the OS X installer. Windows Download and run the Windows installer 32-bit 64-bit. Debian/Ubuntu Run the following to add our apt repository and install the CLI: $ sudo add-apt-repository "deb https://cli-assets.heroku.com/branches/stable/apt ./" $ curl -L https...

Suppose we have a SharePoint list and it has four fields viz. Title, Full Name, Email, Mobile Number etc. Now if you want to apply custom validation in New/Edit Item form, you can easily do it with CSR code. The below mentioned can validate following conditions in forms: Blank values in fields ...

Tracking your app in git Before you can push an app to Heroku, you’ll need to initialize a local Git repository and commit your files to it. For example, if you have an app in a directory, myapp, then create a new repository for it: $ cd myapp $ git init Initialized empty Git repository in .git/...

app\Exceptions\Handler.php public function render($request, Exception $exception) { if ($exception instanceof ModelNotFoundException) { abort(404); } return parent::render($request, $exception); } You can catch / handle any exception that is thrown in Laravel.