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Automatic popping up keyboard on start Activity
...ity with a lot of EditText's in them. When I open the activity it automatically focusses to the first EditText and displays the virtual keyboard.
...
Are foreign keys really necessary in a database design?
...grammer to manipulate data in the correct way. Suppose a programmer is actually doing this in the right manner already, then do we really need the concept of foreign keys?
...
Obstructed folders in Subversion
...olution can be to export the working copy (the entire checkout you have locally) to somewhere else.
If you are using tortoisesvn, you get the option to "export un-versioned files", but I think if doing it from the command line it only exports versioned files so you might have a bit of a laborious t...
How to wait until an element exists?
...atch the DOM. It's only supported in newer browsers though, so you should fall back onto DOMNodeInserted when MutationObserver isn't available.
let observer = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
if (!mutation.addedNodes) return
for (let i = 0; i &...
jQuery UI dialog positioning
...at if you're creating the dialog for the first time, you'll need an extra call to dialog like this: $('#dialog').dialog({ width: 300 /* insert your options */ }).dialog('widget').position({ my: 'left', at: 'right', of: $(this) });
– wsanville
Dec 16 '10 at 16:1...
How to initialize a JavaScript Date to a particular time zone
...
Background
JavaScript's Date object tracks time in UTC internally, but typically accepts input and produces output in the local time of the computer it's running on. It has very few facilities for working with time in other time zones.
The internal representation of a Date object is a...
Adding a column to an existing table in a Rails migration
...cord::Migration[5.0]
def change
end
end
In that case you have to manually an add_column to change:
class AddEmailToUsers < ActiveRecord::Migration[5.0]
def change
add_column :users, :email, :string
end
end
And then run rake db:migrate
...
How to parse a string into a nullable int
...l) ? Int32.Parse(stringVal) : (int?)null;
With C#7's updated syntax that allows you to declare an output variable in the method call, this gets even simpler.
int? val = Int32.TryParse(stringVal, out var tempVal) ? tempVal : (int?)null;
...
What is an Endpoint?
...
All of the answers posted so far are correct, an endpoint is simply one end of a communication channel. In the case of OAuth, there are three endpoints you need to be concerned with:
Temporary Credential Request URI (calle...
How do I get the 'clear' command in Cygwin?
I installed Cygwin, choosing a fairly minimal set of packages.
10 Answers
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