Tutorial by Examples: g

(Access Code)[https://github.com/vDoers/vDoersCameraAccess]

All UI elements created and reside in the main thread of a program. Accessing these from another thread is forbidden by the .net framework runtime. Basically it is because all UI elements are thread sensitive resources and accessing a resource in a multi-threaded environment requires to be thread-sa...

PM2 is a production process manager for Node.js applications, that allows you to keep applications alive forever and reload them without downtime. PM2 also enables you to manage application logging, monitoring, and clustering. Install pm2 globally. npm install -g pm2 Then, run the node.js app u...

Process manager is generally used in production to deploy a nodejs app. The main functions of a process manager are restarting the server if it crashes, checking resource consumption, improving runtime performance, monitoring etc. Some of the popular process managers made by the node community are ...

As we knew, WebRTC is all based on the JavaScript development and coding and for more information and examples please refer here and here. And now, let me show you a very simple example to use getUserMedia(); For what getUserMedia() is used? getUserMedia() is used to get the user/visitor's camera...

Most programming languages support the for-loop control structure. It is generally implemented in this way: for(init; condition; increment){ content_code(); } The above pseudocode is identical with the pseudocode below: init; start_loop: if(condition){ content_code(); increme...

ctags is a useful utility you can use to read and move around the source code more efficiently. The built-in ctags(1) however is not the Exuberant Ctags utility you might expect. You can install Exuberant Ctags (exctags(1)) using either ports or pkg: Build exctags(1) using ports cd /usr/ports/dev...

In this tutorial , I will explain how to integrate Google's BigQuery API with web application. My web application is going to get the data using BigQuery and plot a graph using d3.js and Javascript. Each project on Google Developers Console has a clientID and you need to copy the clientID and put i...

Analog pins can be used to read voltages which is useful for battery monitoring or interfacing with analog devices. By default the AREF pin will be the same as the operating voltage of the arduino, but can be set to other values externally. If the voltage to read is larger than the input voltage, a ...

From the NuGet Package Manager console: Install-Package CouchbaseNetClient

The libc crate is 'feature gated' and can only be accessed on nightly Rust versions until it is considered stable. #![feature(libc)] extern crate libc; use libc::pid_t; #[link(name = "c")] extern { fn getpid() -> pid_t; } fn main() { let x = unsafe { getpid() }; ...

let's say you have two users with username chyingp and casper, and want to add them both to group root. usermod chyingp -a -G root usermod casper -a -G root here comes the explanation of -a, -G -a, --append Add the user to the supplementary group(s). Use only with the -G option. -G, --groups...

In addition to the goal types described above, Analytics provides an alternative conversion tracking method called Smart Goals. Smart Goals are specifically designed to help AdWords advertisers who may not have enough conversions to use the AdWords optimization tools, such as automated bidding. When...

If you want to handle uncaught exceptions try to catch them all in onCreate method of you Application class: public class MyApp extends Application { @Override public void onCreate() { super.onCreate(); try { Thread .setDefaultUncaughtExcept...

Being able to understand Error/Exit codes is a fundamental skill for developers on Window's machine. Yet for many, the cryptic hexadecimal code that can be produced on an application exiting with on error can prove to be time consuming and painstaking process for the developer to track down and isol...

Example Table There are several ways to inject your data into DataTables. Serverside Processing is just one method. In this manner, DataTables has a pre-configured endpoint to retrieve data from, and that endpoint is responsible for accepting all paging/filtering/sorting requests that DataTables ap...

Anchor tag helper is used generate href attributes to link to a particular controller action or MVC route. Basic example <a asp-controller="Products" asp-action="Index">Login</a> Sometimes, we need to specify additional parameters for the controller action that ...

Pass in a literal value (not an object), such as a string or number. Child scope gets his own value, if it updates the value, parent scope has his own old value (child scope can't modify the parens scope value). When parent scope value is changed, child scope value will be changed as well. All int...

Passing in a value by reference, you want to share the value between both scopes and manipulate them from both scopes. You should not use {{...}} for interpolation. <two-way text="'Simple text.'" <!-- 'Simple text.' --> simple-value="123" <!-- 123 Note, is...

Pass a method into a directive. It provides a way to execute an expression in the context of the parent scope. Method will be executed in the scope of the parent, you may pass some parameters from the child scope there. You should not use {{...}} for interpolation. When you use & in a directi...