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Rails migrations: self.up and self.down versus change
... For example, in your case what is the reverse operation of add_column to call when you rollback? Of course it's remove_column. What is the inverse of create_table? It's drop_table. So in these cases rails know how to rollback and define a down method is superfluous (you can see in the documentation...
How to hide databases that I am not allowed to access
... I connect to my Heroku - Postgresql database via pgAdmin3 , It lists all the tables (about 2600). Every time I open the pgAdmin3 I have to find my own database.
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comparing 2 strings alphabetically for sorting purposes
I'm trying to compare 2 strings alphabetically for sorting purposes. For example I want to have a boolean check like if('aaaa' < 'ab') . I tried it, but it's not giving me correct results, so I guess that's not the right syntax. How do I do this in jquery or Javascript?
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How to make jQuery to not round value returned by .width()?
...han the style of the element. It was introduced in IE4 and is supported by all browsers:
$("#container")[0].getBoundingClientRect().width
Note: For IE8 and below, see the "Browser Compatibility" notes in the MDN docs.
$("#log").html(
$("#container")[0].getBoundingClientRect().width
);
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Not receiving Google OAuth refresh token
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You need access_type=offline in all cases when you want the refresh_token.
– DanH
Jan 16 '13 at 3:07
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
... the body or individual elements? It seems to improve scroll events drastically.
5 Answers
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Why are functions and methods in PHP case-insensitive?
...ent little CGI programs written in C before I got sick of it, and combined all of them into a single C library. I then wrote a very simple parser that would pick tags out of HTML files and replace them with the output of the corresponding functions in the C library.
The simple parser slowly grew to ...
What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...rovides high performance, regular, multi-dimensional, shape polymorphic parallel arrays. All numeric data is stored unboxed. Functions written with the Repa combinators are automatically parallel provided you supply +RTS -Nwhatever on the command line when running the program.
Recently, it has bee...
Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
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@Andy following [53-54] allow you to apply more complex functions.
– Andy Hayden
May 3 '13 at 9:29
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How to create a custom attribute in C#
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will i really like the answer and specially ",one more question i can put same condition in set statement of the above code so how it different from attributs,
– slash shogdhe
Feb 2 '11 at 20:58
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