Tutorial by Examples: 1

If you have more than 1 task to execute repeatedly in different intervals, use this example as a starting point: unsigned long intervals[] = {250,2000}; //this defines the interval for each task in milliseconds unsigned long last[] = {0,0}; //this records the last executed time for each ...

How do you detect them? If the same variable/resource/memory location is accessible by multiple threads and at least of the thread is changing the value of variable/resource/memory location, then Race Condition can occurred. Because if a thread is changing the value of variable/resource/memory ...

iOS 10 Now Requires User Permission to Access Media Library, Photos, Camera and other Hardware like these. The solution for this is to add their keys into info.plist with description for user that how we are using their data , iOS already required permissions to access microphone, camera, and m...

This guide is intended to get you started on creating your own User Interface by subclassing the LeftAndMain class. By the end of this guide, you will have created your first Hello World interface in the Administration Panel. Requirements This guide requires you to have at least version 3.* of th...

$args = array( 'post_type'=>'post', 'posts_per_page' =>'10' ); $latest_posts_query = new WP_Query( $args ); if($latest_posts_query->have_posts()) : while ( $latest_posts_query-> have_posts()) : $latest_posts_query->the_post(); //Get post details here endwhile; endif; ...

2xx Success 200 OK - Standard response for successful HTTP requests. 201 Created - The request has been fulfilled, resulting in the creation of a new resource. 204 No Content - The server successfully processed the request and is not returning any content. 3xx Redirection 304 Not Modified...

A crashed web dyno or a boot timeout on the web dyno will present this error. 2010-10-06T21:51:04-07:00 heroku[web.1]: State changed from down to starting 2010-10-06T21:51:07-07:00 app[web.1]: Starting process with command: `bundle exec rails server -p 22020` 2010-10-06T21:51:09-07:00 app[web.1]:...

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 ...

An HTTP request took longer than 30 seconds to complete. In the example below, a Rails app takes 37 seconds to render the page; the HTTP router returns a 503 prior to Rails completing its request cycle, but the Rails process continues and the completion message shows after the router message. 2010-...

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...

This is most likely the result of scaling your web dynos down to 0 dynos. To fix it, scale your web dynos to 1 or more dynos: $ heroku ps:scale web=1 Use the heroku ps command to determine the state of your web dynos. 2010-10-06T21:51:37-07:00 heroku[router]: at=error code=H14 desc="No web...

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="...

This is a quick guide to get Robot Framework 3.0 working on a Windows machine using Python 2.7.11 - It does not go into too much depth on the why and how, it simply gets you up and running. First things are first, let't go and install Python! Download Python 2.7.11 for Windows. (Windows x86-64 ...

Previously, datatables were initialized as follows: var oTable = $("#selector").dataTable(); This used to return a jQuery object which would stored in the variable oTable. And then to access the api to modify table properties, we had to initialize the api differently, as shown below: ...

The following 3 features (that were deprecated in 1.9) are no longer available in 1.10, they are : fnRender: According to the deverloper: The old fnRender option provided a method of manipulating a cell when it was created. however, it was provided with a confusing list of options as its a...

Prerequiste steps: Get dotnet core for your platform: Dotnet Core Follow instructions and make sure dotnet core is working Get Visual Studio Code for your platform: VS Code Launch Visual Studio Code (VS code) and install the C# extension then reload Create self hosted NancyFx project: ...

You can pass parameters to the functions in tf.cond() using lambda and the code is as bellow. x = tf.placeholder(tf.float32) y = tf.placeholder(tf.float32) z = tf.placeholder(tf.float32) def fn1(a, b): return tf.mul(a, b) def fn2(a, b): return tf.add(a, b) pred = tf.placeholder(tf....

Windows 10 IoT Core is available only for Raspberry Pi 2 and 3. It is important to note that this is not a full version of windows as one might expect, it is designed specifically for IoT (Internet of Things) applications. It will not run most standard windows applications, and does not have a start...

The base64 module also includes encoding and decoding functions for Base16. Base 16 is most commonly referred to as hexadecimal. These functions are very similar to the both the Base64 and Base32 functions: import base64 # Creating a string s = "Hello World!" # Encoding the string into...

Say you have the string s = 'AAAABBBCCDAABBB' and you would like to split it so all the 'A's are in one list and so with all the 'B's and 'C', etc. You could do something like this s = 'AAAABBBCCDAABBB' s_dict = {} for i in s: if i not in s_dict.keys(): s_dict[i] = [i] els...