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What is the difference between JVM, JDK, JRE & OpenJDK?
...vides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. In addition, two key deployment technologies are part of the JRE: Java Plug-in, which enables applets to run in popular browsers; and Java Web Start, which de...
Listening for variable changes in JavaScript
...he proxy around like if it was your object and make the other parts of the app interact with your proxy. Changes on the proxy will be reflected on the actual object.
– Zoltán Matók
Sep 27 '19 at 9:26
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Selenium wait until document is ready
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Thanks , so what happens here if the page gets loaded before 10 seconds , will it still wait 10 seconds to execute the next line after load ?
– Girish
Feb 28 '13 at 6:17
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How to get the root dir of the Symfony2 application?
What is the best way to get the root app directory from inside the controller? Is it possible to get it outside of the controller?
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Background task, progress dialog, orientation change - is there any 100% working solution?
...nCreate().
Here is a sample project demonstrating the technique.
Another approach is to ditch the AsyncTask and move your work into an IntentService. This is particularly useful if the work to be done may be long and should go on regardless of what the user does in terms of activities (e.g., downl...
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...
Circular (or cyclic) imports in Python
What will happen if two modules import each other?
11 Answers
11
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How to list of all the tables defined for the database when using active record?
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An update for Rails 5.2
For Rails 5.2 you can also use ApplicationRecord to get an Array with your table' names. Just, as imechemi mentioned, be aware that this method will also return ar_internal_metadata and schema_migrations in that array.
ApplicationRecord.connection.tables
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How to redirect to a 404 in Rails?
...ow a 404 page, create a render_404 method (or not_found as I called it) in ApplicationController like this:
def not_found
raise ActionController::RoutingError.new('Not Found')
end
Rails also handles AbstractController::ActionNotFound, and ActiveRecord::RecordNotFound the same way.
This does t...
How efficient can Meteor be while sharing a huge collection among many clients?
...cription, the merge box is
essentially a pass-through. But a more complex app can have multiple
subscriptions which might overlap. If two subscriptions both set the
same attribute on the same document, the merge box decides which value
takes priority and only sends that to the client. We haven't ...