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How do I revert a Git repository to a previous commit?
...away your local changes, but you can at least get back to where you were before by resetting again.
Undo published commits with new commits
On the other hand, if you've published the work, you probably don't want to reset the branch, since that's effectively rewriting history. In that case, you coul...
How do you get the rendered height of an element?
...
One word - awesome! Thanks for everyone's participation. Lots of good info on this thread. This will allow me to center pages using CSS but use jQuery to make the overall height of the "container" div correct without venturing into CSS hackville. Than...
Git Push Error: insufficient permission for adding an object to repository database
...o a shared git remote, I get the following error:
insufficient permission for adding an object to repository database
19 A...
How do I get ASP.NET Web API to return JSON instead of XML using Chrome?
...ng in App_Start / WebApiConfig.cs class in my MVC Web API project.
config.Formatters.JsonFormatter.SupportedMediaTypes
.Add(new MediaTypeHeaderValue("text/html") );
That makes sure you get JSON on most queries, but you can get XML when you send text/xml.
If you need to have the response Cont...
Capture HTML Canvas as gif/jpg/png/pdf?
... to turn the data URL into image data, then finally it can show the image. For a screen size image that's a huge amount of memory/copying/parsing. Just a suggestion
– gman
Jan 25 '17 at 8:26
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Run a callback only if an attribute has changed in Rails
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Rails 5.1+
class Page < ActiveRecord::Base
before_save :do_something, if: :will_save_change_to_status_id?
private
def do_something
# ...
end
end
The commit that changed ActiveRecord::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b9...
Creating a segue programmatically
...e segues programmatically - it is the storyboard runtime that creates them for you. You can normally call performSegueWithIdentifier: in your view controller's code, but this relies on having a segue already set up in the storyboard to reference.
What I think you are asking though is how you can c...
Multiple submit buttons on HTML form – designate one button as default [duplicate]
I have a form that has three submit buttons as follows:
9 Answers
9
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How do I use prepared statements in SQlite in Android?
...s answer can have so many votes. SQLIteStatement#execute shouldn't be used for Sql queries, only statements. Please check developer.android.com/reference/android/database/sqlite/…
– simao
Feb 14 '11 at 0:55
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How can I listen to the form submit event in javascript?
I wanna write my own form validation javascript library and I've been looking on google how to detect if a submit button is clicked but all I found is code where you have to use onClick on onSubmit="function()" in html.
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