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Rails Observer Alternatives for 4.0
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There are problems with this approach. Notably, It doesn't clean up your models; include copies the methods from the module back in to your class. Extracting class methods out to a module may group them by concern, but the class is still just as bloated....
Adding a favicon to a static HTML page
...t have more than 10 images in the correct sizes and formats.
I created an App (faviconit.com) so people don´t have to create all these images and the correct tags by hand.
Hope you like it.
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Calculate distance between two latitude-longitude points? (Haversine formula)
...very much for all this. I used the following code in my Objective-C iPhone app:
const double PIx = 3.141592653589793;
const double RADIO = 6371; // Mean radius of Earth in Km
double convertToRadians(double val) {
return val * PIx / 180;
}
-(double)kilometresBetweenPlace1:(CLLocationCoordina...
The current SynchronizationContext may not be used as a TaskScheduler
...and doesn't actually continue on the same thread.
– Sapph
Apr 9 '16 at 21:29
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How do I resolve “Cannot find module” error using Node.js?
...to the current directory only (in a subdirectory called node_modules). Is app.js located under home/dave/src/server/? If not and you want to use the module from any directory, you need to install it globally using npm install -g.
I usually install most packages locally so that they get checked in...
delete_all vs destroy_all?
I am looking for the best approach to delete records from a table. For instance, I have a user whose user ID is across many tables. I want to delete this user and every record that has his ID in all tables.
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Swift: #warning equivalent
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In the future, Apple devs may very well release a //WARNING: landmark, or provide the functionality for another named landmark.
To envoke this functionality with Swift in Xcode today however, you could do the following as outlined by Ben D...
How do you close/hide the Android soft keyboard using Java?
...roid:windowSoftInputMode="stateAlwaysHidden"/>
Almost unbelievably, it appears to do nothing to prevent the keyboard from opening when you touch the control (unless focusable="false" and/or focusableInTouchMode="false" are assigned to the control). Apparently, the windowSoftInputMode setting app...
WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
I'm building a web application using Visual Studio 2012.
I'm attempting to add word count into my textbox.
However after adding the the javascript codes and the html codes. I receive the error as stated above.
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How to append something to an array?
How do I append an object (such as a string or number) to an array in JavaScript?
30 Answers
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