Tutorial by Examples: g

Sample AJAX request w/ binding

Page.html <div data-bind="foreach: blogs"> <br /> <span data-bind="text: entryPostedDate"></span> <br /> <h3> <a data-bind="attr: { href: blogEntryLink }, text: title"></a> </h3> ...

"Loading section/notification" during AJAX request

Blog.html <div data-bind="visible: isLoading()"> Loading... </div> <div data-bind="visible: !isLoading(), foreach: blogs"> <br /> <span data-bind="text: entryPostedDate"></span> <br /> <h3> ...

Pan, zoom, and rotate with QGraphicsView

QGraphics can be used to organize complicated scenes of visual objects into a framework that makes them easier to handle. There are three major types of objects used in this framework QGraphicsView, QGraphicsScene, and QGraphicsItems. QGraphicsItems are the basic visual items that exist in the scen...

Testing Http Service

Usually, services call remote Api to retrieve/send data. But unit tests shouldn't do network calls. Angular internally uses XHRBackend class to do http requests. User can override this to change behavior. Angular testing module provides MockBackend and MockConnection classes which can be used to tes...

1. Standard String

In vbscript, an object doesn't necessarily need a designated type. Similar to C#'s var variable. Dim ExampleString1 As String Dim ExampleString2

2. String Manipulation Basics

'Base string Dim exStr : exStr = " <Head>data</Head> " 'Left Dim res: res = Left(exStr,6) 'res now equals " <Head" 'Right Dim res: res = Right(exStr,6) 'res now equals "Head> " 'Mid Dim res: res = Mid(exStr,8,4) 'res now equals "data&quot...

3. Searching a String

Given a text file test.txt: Ford Jeep Honda The following script is processing this text file: 'Read in File Data to an array, separate by newline vb equivalent (vbcrlf) Dim car, cars Dim filefullname : filefullname = "C:\testenv\test.txt" cars = Split(CreateObject("Scriptin...

5. Populating array with specific text from string via start and end characters.

'Note: I use this method to extract non-html data in extracted GET telnet results 'This example effectively grabs every other vehicle that have start and finish 'characters, which in this case is "/". 'Resulting in an array like this: 'extractedData(0) = "/Jeep" 'extractedD...

4. Chaining string manipulation methods together.

Dim exStr : exStr = " <Head>data</Head> " Dim res res = Ucase(Replace(Mid(exStr, instr(exStr, ">")+1,4), "ata", "ark")) 'res now equals DARK 'instr(exStr, ">") returns 7 'Mid(" <Head>data</Head> ", 7+1,...

createDissolvedGDB to create a file gdb on the workspace

def createDissolvedGDB(workspace, gdbName): gdb_name = workspace + "/" + gdbName + ".gdb" if(arcpy.Exists(gdb_name): arcpy.Delete_management(gdb_name) arcpy.CreateFileGDB_management(workspace, gdbName, "") else: arcpy.CreateFi...

Configure Macros in a Project

In the build.sbt file (or where the project is defined if it is in another location), add the following setting: scalacOptions += "-language:experimental.macros" For instance, a project might be defined like this: lazy val main = project.in(file(".")) // root project .se...

Using the PROMPT_COMMAND envrionment variable

When the last command in an interactive bash instance is done, the evaluated PS1 variable is displayes. Before actually displaying PS1 bash looks whether the PROMPT_COMMAND is set. This value of this var must be a callable program or script. If this var is set this program/script is called BEFORE th...

Using PS2

PS2 is displayed when a command extends to more than one line and bash awaits more keystrokes. It is displayed too when a compound command like while...do..done and alike is entered. export PS2="would you please complete this command?\n" # now enter a command extending to at least two l...

Using PS3

When the select statement is executed, it displays the given items prefixed with a number and then displays the PS3 prompt: export PS3=" To choose your language type the preceding number : " select lang in EN CA FR DE; do # check input here until valid. break done

Using PS4

PS4 is displayes when bash is in debugging mode. #!/usr/bin/env bash # switch on debugging set -x # define a stupid_func stupid_func(){ echo I am line 1 of stupid_func echo I am line 2 of stupid_func } # setting the PS4 "DEBUG" prompt export PS4='\nDEBUG level:$SHLVL ...

Display Settings

When in the SBT console, to list all definable settings for a project: settings Or, to get a subproject's (for example, named webapp) settings: project webapp settings The first line above navigates into the specific subproject. To show the value of a specific setting (for instance, organi...

Hello World (getting site title)

2013 SharePoint 2013 and newer versions are 64-bit only and so the assembly/program needs to be also built for 64-bit processor. Right after your project is created it is necessary to swich the Platform target from Any CPU to x64 otherwise error will occure. using System; using Microsoft.Share...

Using BigDecimal instead of float

Due to way that the float type is represented in computer memory, results of operations using this type can be inaccurate - some values are stored as approximations. Good examples of this are monetary calculations. If high precision is necessary, other types should be used. e.g. Java 7 provides Big...

Adding a Contact

Swift import Contacts // Creating a mutable object to add to the contact let contact = CNMutableContact() contact.imageData = NSData() // The profile picture as a NSData object contact.givenName = "John" contact.familyName = "Appleseed" let homeEmail = CNLabele...

MVVM Example using DataBinding Library

The whole point of MVVM is to separate layers containing logic from the view layer. On Android we can use the DataBinding Library to help us with this and make most of our logic Unit-testable without worrying about Android dependencies. In this example I'll show the central components for a stupid...

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