Tutorial by Examples: p

Usually the case when one wants to change a field type to another, for instance the original collection may have "numerical" or "date" fields saved as strings: { "name": "Alice", "salary": "57871", "dob": "198...

Before you decide to work on puppet there are few things that you need to know. puppet work in both client-server architecture (widely used) as well single machine (specially for testing purpose) puppet master can only be configured on a linux machine (master machine/node), windows can b...

# This is an example of a .profile or .bash_profile for Linux and Mac systems export GOPATH=/home/user/go export PATH=$PATH:/usr/local/go/bin

Android Studio -> Preferences -> Gradle -> Tick Offline work and then restart your Android studio. Reference screenshot:

In order to put your view on top of every application, you have to assign your view to the corresponding window manager. For that you need the system alert permission, which can be requested by adding the following line to your manifest file: <uses-permission android:name="android.permissio...

You can get easily get this information by barfing out the input in your handler function. For example, in Java: public String handleRequest(String input, Context context) { context.getLogger().log("Input: " + input); String output = "Input:" + System.getProperty(&qu...

// Mixin to generate hidden classes @mixin generate-hidden-classes { @each $bp in map-keys($grid-breakpoints) { .hidden-#{$bp} { @include media-breakpoint-only($bp) { display: none !important; } } } } // Call to the mixin @include generate-hidden-classes(...

If you are attempting to get an Angular2 site running on your Windows work computer at XYZ MegaCorp the chances are that you are having problems getting through the company proxy. There are (at least) two package managers that need to get through the proxy: NPM Typings For NPM you need to ad...

You have a few options when it comes to logging in with Meteor. The most common method is using accounts for Meteor. Accounts-password If you want users to be able to create and register on your site, you can use accounts-password. Install the package using meteor add accounts-password. To creat...

Initial Creation and Download (CakePHP 3.x) The easiest way to create a new CakePHP project is via Composer (if you don't know about composer look here for more info) Install Composer If you need to install it and are on a windows machine follow this guide If you are on Linux/Unix/OSX follow thi...

@Component @Lazy public class Demo { .... .... } @Component public class B { @Autowired @Lazy // If this is not here, Demo will still get eagerly instantiated to satisfy this request. private Demo demo; ....... }

//'client.jade' //a button is placed down; similar in HTML button(type='button', id='send_by_button') Modify data #modify Lorem ipsum Sender //loading jQuery; it can be done from an online source as well script(src='./js/jquery-2.2.0.min.js') //AJAX request ...

Loop n times: while [ $((i=${i:=0}+1)) -le "$n" ]; do echo line $i done Output for n=5: line 1 line 2 line 3 line 4 line 5 Manipulating decimals: $ i=3.14159; echo $((${i%.*}*2)) 6 $ i=3.14159; echo $((${i#*.}*2)) 28318

Absolute value: $ for n in -8 -2 0 3 4; do > echo $((n<0?-n:n)) > done 8 2 0 3 4 Fix variable range: $ min=2 $ max=4 $ for n in 1 2 3 4 5; do > echo $((n<min?min:n>max?max:n)) > done 2 2 3 4 4

$ ispow2() { return $((!($1!=0&&($1&$1-1)==0))); } $ i=0 $ while [ $i -lt 100 ]; do > if ispow2 $((i=i+1)); then > echo $i > fi > done 1 2 4 8 16 32 64 $1!=0 0 is not a power of 2. ($1&$1-1)==0 Unset the lowest bit. If it was the only bit...

Open routes file. Paste the following code in: Route::get('helloworld', function () { return '<h1>Hello World</h1>'; }); after going to route localhost/helloworld it displays Hello World. The routes file is located: 5.3 For Web routes/web.php For APIs routes/api.php ...

This is a simple example to search in Google. It containt two parts, Feature File Step Definition File Am not going into much details here as the code itself is self explanatory. Feature File Feature:Google Key word search @mytag Scenario: search Spec Flow in Google search bar Given...

If you want to use "cmake" (see www.cmake.org), type cd [your libpng source directory] cmake . -DCMAKE_INSTALL_PREFIX=/path make make install where "/path" points to the installation directory where you want to put the libpng "lib", "include", and &quot...

This will download libpng from the official "git" repository and build it in your "libpng" directory. git clone https://github.com/glennrp/libpng.git libpng cd libpng ./autogen.sh ./configure [--prefix=/path] make install where "/path" points to the installation...

Basic architecture examples on how development for embedded systems works (i.e. IDEs, cross-compiling, downloading, in-line debugging, JTAG,...) and what would be the minimum requirements for starting. It would be worth mentioning different approaches and platforms from begginers-higher level to ad...