Tutorial by Examples: p

Simple Symmetric File Encryption

The following code sample demonstrates a quick and easy means of encrypting and decrypting files using the AES symmetric encryption algorithm. The code randomly generates the Salt and Initialization Vectors each time a file is encrypted, meaning that encrypting the same file with the same password ...

C# Language • Cryptography (System.Security.Cryptography)

Apple

Keep in mind that this will not work on Apple devices (I didnt test them all), but if you want to make push notifications check OneSignal plugin.

Node.js • Push notifications

API documentation

Use Spring REST Docs to document your services. It's a powerful framework which makes sure that the Service logic is always inline with the documentation. In order to do so, you would have to write integration tests for your services. If there is any mismatch in the documentation & service beha...

microservices • Getting started with microservices

Sample for API documentation

Use Spring REST Docs to document your services. It's a powerful framework which makes sure that the Service logic is always inline with the documentation. In order to do so, you would have to write integration tests for your services. If there is any mismatch in the documentation & service beha...

microservices • Getting started with microservices

Installation or Setup

Detailed instructions on getting symfony-forms set up or installed.

symfony-forms • Getting started with symfony-forms

Simple example

Encoded URL http%3A%2F%2Fwww.foo.com%2Findex.php%3Fid%3Dqwerty Use this command to decode the URL echo "http%3A%2F%2Fwww.foo.com%2Findex.php%3Fid%3Dqwerty" | sed -e "s/%$[0-9A-F][0-9A-F]$/\\\\\x\1/g" | xargs -0 echo -e Decoded URL (result of command) http://www.foo...

Bash • Decoding URL

Whitespace handling

To remove whitespace (spaces, tabs, newlines…) between HTML tags use spaceless tag: {% spaceless %} <div> <span>foo bar </span> </div> {% endspaceless %} {# produces output <div><strong>foo bar </strong></div> #} If you need ...

twig • Basic template syntax

Page, DOM and Browser loading

This is an example to explain the variations of load events. onload event <body onload="someFunction()"> <img src="image1" /> <img src="image2" /> </body> <script> function someFunction() { console.log("Hi! I am l...

JavaScript • Events

Linking Electron with Bootstrap

In order to use bootstrap, there are 2 cases. The electron app is connected to internet The electron app is not connected to internet For electron apps that are connected to internet, we can just make use of CDN links for bootstrap and include that in our html files. The problem comes when w...

electron • Using bootstrap in electron

from a public repository using the command line and renaming file

This example grabs the Node.gitignore file from GitHub's gitignore repository, downloads it to your current working directory and renames it to .gitignore - all very typical actions for someone starting a new node.js project. $ curl http://github.com/github/gitignore/raw/master/Node.gitignore -o .g...

github • download single file from GitHub repository

Using printf to decode a string

#!bin/bash $ string='Question%20-%20%22how%20do%20I%20decode%20a%20percent%20encoded%20string%3F%22%0AAnswer%20%20%20-%20Use%20printf%20%3A)' $ printf '%b\n' "${string//%/\\x}" # the result Question - "how do I decode a percent encoded string?" Answer - Use printf ...

Bash • Decoding URL

Installation or Setup

Detailed instructions on getting metal set up or installed.

metal • Getting started with metal

Delegate Can be used as a layer to reduce boilerplate

Consider Kotlin's Null Type system and WeakReference<T>. So let's say we have to save some sort of reference and we wanted to avoid memory leaks, here is where WeakReference comes in. take for example this: class MyMemoryExpensiveClass { companion object { var reference: WeakR...

Kotlin • Delegated properties

create the new controller with name API

<?php defined('BASEPATH') OR exit('No direct script access allowed'); class Api extends CI_Controller { //default value private $login_credential; function __construct() { parent::__construct(); //for user authentication $this->load->library('session'); ...