Tutorial by Examples: n

Exporting your public key

In order for your public-private keypair to be of use, you must make your public key freely available to others. Be sure that you are working with your public key here since you should never share your private key. You can export your public key with the following command: gpg —armor —export EMAI...

Setting up Firebase for IOS

Firstly, you want to go to firebase dashboard and create a new project using the 'Create New Project' button. You want to create a new project by adding the name of your app for example I put mine as 'Cool app name' then choose your region and press 'Create Project' After creating pr...

Considerations

You need to decide what your forest structure is going to look like before you install Active Directory for the first time. Are you to have just one domain in your forest, or are you going to have multiple domains in your forest? Active Directory can support multiple sites. Generally sites are spl...

Paging list items returned from a query

To simulate paging using REST you can do the following: Use the $skip=n parameter to skip the first n entries according to the $orderby parameter Use the $top=n parameter to return the top n entries according to the $orderby and $skip parameters. var endpointUrl = "/_api/lists('g...

Define custom managers

Very often it happens to deal with models which have something like a published field. Such kind of fields are almost always used when retrieving objects, so that you will find yourself to write something like: my_news = News.objects.filter(published=True) too many times. You can use custom mana...

Horizontal Pill Menu

<ul class="nav nav-pills"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="presentation&q...

Vertical Pill Menu

<ul class="nav nav-pills nav-stacked"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="pr...

Full Width Responsive Horizontal Pill

<ul class="nav nav-tabs nav-justified"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="p...

Change Navbar breakpoint (mobile vs normal)

max-width is the breakpoint @media (max-width: 1200px) { .navbar-header { float: none; } .navbar-left,.navbar-right { float: none !important; } .navbar-toggle { display: block; } .navbar-collapse { border-top: 1px solid transpar...

Close collapsed navbar when clicking outside of the navbar

jQuery('body').bind('click', function(e) { if(jQuery(e.target).closest('#navbar').length == 0) { // click happened outside of .navbar, so hide var opened = jQuery('.navbar-collapse').hasClass('collapse in'); if ( opened === true ) { jQuery('#navbar2 .navb...

SSH-Agent

If you have set a long passphrase and do not wish to keep entering it every time you want to connect to the server, you can use SSH-Agent to store your passphrase while you are logged in on your computer. Start the ssh-agent in the background: eval "$(ssh-agent -s)" # Agent pid 59566 ...

Custom Listview comprises of rows that are designed as per the users needs.

For the layout above your customrow.axml file is as shown below <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_heigh...

Using MarkupExtension with Converters to skip recource declaration

Usually to use the converter, we have to define it as resource in the following way: <converters:SomeConverter x:Key="SomeConverter"/> It is possible to skip this step by defining a converter as MarkupExtension and implementing the method ProvideValue. The following example conve...

Use IMultiValueConverter to pass multiple parameters to a Command

It is possible to pass multiple bound values as a CommandParameter using MultiBinding with a very simple IMultiValueConverter: namespace MyProject.Converters { public class Converter_MultipleCommandParameters : MarkupExtension, IMultiValueConverter { public object Convert(object...

Ionic Framework Hello World App

After All the setup, To make Hello World App To create Simple Blank App, run below command on terminal : ionic start HelloWorld blank // create new project cd HelloWorld // get into HelloWorld directory open the HelloWorld Project in subline/webstrome IDE : Edit ind...

Basic webpage using bootstrap components

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1">...

Mongoose connection

Make sure to have mongodb running first! mongod --dbpath data/ package.json "dependencies": { "mongoose": "^4.5.5", } server.js (ECMA 6) import mongoose from 'mongoose'; mongoose.connect('mongodb://localhost:27017/stackoverflow-example'); const db = mon...

Insert data

ECMA 6: const user = new User({ name: 'Stack', password: 'Overflow', }) ; user.save((err) => { if (err) throw err; console.log('User saved!'); }); ECMA5.1: var user = new User({ name: 'Stack', password: 'Overflow', }) ; user.save(function (err) { ...

Catching and handling errors in user code

On error move to labelled code and see if there is a specific error that needs to be handled. Public Const cErrCodeNotNumber = 2262 ' This value must be a number. Public Const cErrCodeNumericOverflow = 2263 ' The number is too large. Private Sub MySub() Dim objConn As ADODB.Connection ...

Binding modes and defaults

There are three modes of XAML bindings exists for either Binding and x:Bind: OneTime: Update happens only once, on initialization of the view during InitializeComponent() call. (ViewModel[sends data when initializing] -> View) OneWay: View is updated when ViewModel changes. But not in the rev...

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