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First you need to load the email library. Do this either in the controller file that will be sending the email: $this->load->library('email'); Or load it globally in the autoload.php file in the config folder: $autoload['libraries'] = array('email'); While you're there, you may want t...

This example shows how to update a UI component from a background thread by using a SynchronizationContext void Button_Click(object sender, EventArgs args) { SynchronizationContext context = SynchronizationContext.Current; Task.Run(() => { for(int i = 0; i < 10; i++) ...

Feather is an implementation of Apache Arrow designed to store data frames in a language agnostic manner while maintaining metadata (e.g. date classes), increasing interoperability between Python and R. Reading a feather file will produce a tibble, not a standard data.frame. library(feather) pat...

// 1. Base example not using language support for covariance, dynamic type checking. class Top { public: virtual Top* clone() const = 0; virtual ~Top() = default; // Necessary for `delete` via Top*. }; class D : public Top { public: Top* clone() const override ...

// 2. Covariant result version of the base example, static type checking. class Top { public: virtual Top* clone() const = 0; virtual ~Top() = default; // Necessary for `delete` via Top*. }; class D : public Top { public: D* /* ← Covariant return */ clone() const over...

const source = Rx.Observable.range(1, 3) .map((x, idx, obs) => `Element ${x} was at position ${idx}`); const subscription = source.subscribe( x => console.log(`Next: ${x}`), err => console.log(`Error: ${err}`), () => console.log(`Completed`) ); // => Next: Element 1...

In order to get the official I18N Plugin into your CLI Project we need to install it by following the next steps. First you want to install the plugin via npm: npm install aurelia-i18n Since Aurelia-I18N is backed by i18next, you should install it and a backend plugin of your choice. As an exampl...

From inside the interative Julia shell (also known as REPL), you can access the system's shell by typing ; right after the prompt: shell> From here on, you can type any shell comand and they will be run from inside the REPL: shell> ls Desktop Documents Pictures Templates Downloa...

private final Logger logger = Logger.getLogger(getClass().getCanonicalName()); WebView webView = new WebView(); webEngine = webView.getEngine(); webEngine.setOnAlert(event -> logger.warning(() -> "JS alert: " + event.getData()));

When using a WebView to display your own custom webpage and this webpage contains Javascript, it might be necessary to establish a two-way communication between the Java program and the Javascript in the web page. This example shows how to setup such a communication. The webpage shall display an i...

public class AuthenticationHandler : DelegatingHandler { /// <summary> /// Holds request's header name which will contains token. /// </summary> private const string securityToken = "__RequestAuthToken"; /// <summary> ...

You can also make code run synchronously with the main thread using runTask. This is useful when you want to call Bukkit API methods after running code asynchronously from the main thread. Code called inside of this Runnable will be executed on the main thread, making it safe to call Bukkit API met...

post-receive hooks can be used to automatically forward incoming pushes to another repository. $ cat .git/hooks/post-receive #!/bin/bash IFS=' ' while read local_ref local_sha remote_ref remote_sha do echo "$remote_ref" | egrep '^refs\/heads\/[A-Z]+-[0-9]+$' >/dev/null &am...

from django.contrib.auth.models import User from rest_framework import authentication from rest_framework import exceptions This example authentication is straight from the official docs here. class ExampleAuthentication(BaseAuthentication): def authenticate(self, request): usernam...

This is a snippet of master report. Two parameters and the connection (for example, jdbc) are passing to the subreport. One value is returned from the subreport back to the master report, this value (variable) can be used in master report <subreport> <reportElement x="0" y=&...

The CLOS MOP provides the hook slot-value-using-class, that is called when a slot is value is accessed, read or modified. Because we only care for modifications in this case we define a method for (setf slot-value-using-class). (defclass document () ((id :reader id :documentation "A hash co...

Uploaded files are available in request.files, a MultiDict mapping field names to file objects. Use getlist — instead of [] or get — if multiple files were uploaded with the same field name. request.files['profile'] # single file (even if multiple were sent) request.files.getlist('charts') # li...

The -path parameter allows to specify a pattern to match the path of the result. The pattern can match also the name itself. To find only files containing log anywhere in their path (folder or name): find . -type f -path '*log*' To find only files within a folder called log (on any level): fin...

while IFS= read -r line;do echo "**$line**" done < <(ping google.com) or with a pipe: ping google.com | while IFS= read -r line;do echo "**$line**" done

Let's assume that the field separator is : while IFS= read -d : -r field || [ -n "$field" ];do echo "**$field**" done < <(ping google.com) Or with a pipe: ping google.com | while IFS= read -d : -r field || [ -n "$field" ];do echo "**$field**&q...