Brian Mancini - derp turkey (Page 4)

C# Windows Service Startup Arguments

Here are a few tips on passing arguments to a .NET Windows Service. Install a Windows Service with Arguments I found the easiest way to install my service with a path that includes arguments, ala: c:\myservice\myservice.exe --port 8080 was to use

unit testing

Unit Testing Directives in Angular

I've been following a pattern of Angular development of using components as much as possible, exclusively using controllerAs, and following many recommendations in John Papa's styleguide. The result is heavy use of directives and privately scoped controllers. This is great for organization, but this

nodejs

grunt-traceur on the server-side

You can transpile server-side Node.js code using grunt-traceur in the same manner you compile client-side code. In order to use this Grunt task for Node.js source code, you will need to set the module flag to commonjs. Here's an example Grunt config:

javascript

Super class access in JavaScript

The traditional way to access overridden functions in JavaScript is a bit kludgy. For exaxmple, given you have a child class Child that inherits from a super class Parent you would do something like... Child.prototype.validate = function() { // call base class method Parent.prototype.

ios

Programmatic search in iOS

Code Sample: @interface MyViewController @property (strong, nonatomic) NSArray *venues; @property (strong, nonatomic) NSArray *searchResults; @end - (void)loadView { [super loadView]; UISearchBar *searchBar = [[UISearchBar alloc]init]; self.searchController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self]; self.searchController.searchResultsDelegate = self; self.searchController.searchResultsDataSource = self; self.searchController.delegate

objective-c

NSNotificationCenter with Swift

Working with NSNotifciationCetner in Swift is fairly straightforward. // This class will correctly work because it inherits from // NSObject and thus automatically can be used by Objective-C. // It does not use any Swift specific features. // class OkExample: NSObject { override init() { super.init() NSNotificationCenter.defaultCenter().addObserver(

swift

Get Property Names of Object in Swift

Here is an extension for NSObject that will return the names of the properties in the object. import Foundation extension NSObject { // // Retrieves an array of property names found on the current object // using Objective-C runtime functions for introspection: // https://developer.apple.com/library/mac/

javascript

Promise + Callback pattern for JavaScript

As I've been working with Promises more, I've found a need to migrate existing code from callback passing syntax to returned promise syntax. Since the Node ecosystem favors the callback passing syntax, it is wise to make your library support both callbacks and Promises.

angular

Prevent GET request caching in Angular

Ran into an issue with Angular where it was caching GET requests in IE. I ended up modifying my application so that it appends no-cache headers for GET requests. This way I don't need to send modify each request or send additional values in

c#

Embedding DLLs and Resources in a C# Executable

In the needed to create a portable command line tool, I needed to make the footprint as small as possible. This involved embedding some resources as well as ILMerging the referenced assmeblies to make a single file that includes all dependencies. Embedding References I

javascript

JavaScript ToDictionary

Anyone familiar with Linq's ToDictionary method may be looking for a similar technique in JavaScript. The cool thing about JavaScript is that first-order properties (properties attached to the first prototype of the instance) are usually implemented in a "dicationary-like" way. Thus we

ios

Global Notifications in iOS

So this is how I created some global Notifications for my application. I'm not sure if this is the best way but it works. The benefit is that you don't have to add an import statement in every single place that needs to access

ios

Change bottom border color of UITableViewCell

You can change easily and efficiently create custom borders for a custom UITableViewCell by overriding the drawRect method of the view. For example: @interface CustomCell: UITableViewCell @end @implementation CustomCell - (void)drawRect:(CGRect)rect { [super drawRect:rect]; CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetStrokeColorWithColor(context, [UIColor blueColor]

ios

Synchronization UI code with GCD

I came across a situation where multiple threads were attempting to display a loading view. This was sometimes causing race conditions. Enter synchronization. This article does a great job of explaining various techniques for performing synchronization. Because I was working with with UI components,

ios

Maintain UITableView scroll position with keyboard expansion

Want to maintain the scroll position of your UITableView when the Keyboard expands? Well look no further. This is an article that will discuss how to use the Keyboard events to retain the scroll position in your table. For a working example you can

javascript

Simplify Promise chains with Arrow Functions

Arrow Functions are a new feature of JavaScript slated for arrival in ES6. They provide new syntax for creating function expressions. In the JavaScript world, we frequetly create function expressions when we make anonymous functions or define a function. Arrow Functions give us another

extjs

ExtJS: Handle anchor tag clicks

Just a note on handling anchor clicks in text. If you have a blob of HTML in text on a view... for instance: { xtype: 'panel', html: '<span class="z-information-icon" data-qtip="Expected file fomart is CSV">&nbsp&

ios

Understanding Ad Hoc Provisioning

Creating the IPA The following example is created with XCode5 and iOS7 and explains the process needed to create Ad Hoc provisioned applications. This assumes you have a developer account already configured. Create your signing certificate If you don't already have signing certificates you

ios

Placeholder in UITextView

Here's an implementation of an override for UITextView that includes a placeholder. It's pretty straight forward. We add an NSNotificaitonCenter observer for the UITextViewTextDidChangeNotification event. This event will be trigger when the text changes for our UITextView. We then add some logic to show

ios

Dismiss keyboard with UITableView touch

Dismissing the keyboard based on a touch of the content area of UITableViewController or UIController is actually pretty straight forward. The basics are that you will add an action for tap gestures in the loadView or viewDidLoad events. For example, if you have a

ios

AutoSize UITableViewCell height programmatically

We've been working with NSLayoutConstraint and the AutoSize system to dynamically set sizes. There are not many tutorials about using this system programmatically... and definitely not much explanation with autosizing cells. So... I spent a few hours today and figured out the bare minimum

javascript

Check if something is an Array, Object, or Function in JavaScript

There are a few techniques for this, but here's what I always fall back. Writing this down for posterity. function isArray(sut) { return Object.prototype.toString.call(sut) === '[object Array]'; } function isObject(sut) { return Object.prototype.toString.call(sut) === '[object Object]

NSTimer in NSOperation

Using NSTimer and NSRunLoop. This technique requires storing the thread and the timer references. The thread is stored because in this example, the invalidate method could is called from a different thread. It will cause retention issues if you fail to do this. Calling

ios

Concurrent / Asynchronous NSOperation

// // GetLocationCommand.m // Buzzrd // // Created by Brian Mancini on 6/29/14. // Copyright (c) 2014 Buzzrd. All rights reserved. // #import "GetLocationCommand.h" @interface GetLocationCommand() @property (strong, nonatomic) NSTimer *timeoutTimer; @property (strong, nonatomic) NSThread *mainThread; @end @implementation GetLocationCommand { bool executing; bool finished; } - (id)

iOS equivalent of setTimeout cancellation

float interval = 0.5; if(!self.timer) { dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_source_t timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue); dispatch_resume(timer); self.timer = timer; } dispatch_source_t timer