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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
...m a hash and get the remaining hash in Ruby.
.slice => It will return selected keys and not delete them from the original hash. Use slice! if you want to remove the keys permanently else use simple slice.
2.2.2 :074 > hash = {"one"=>1, "two"=>2, "three"=>3}
=> {"one"=>1, "tw...
How to use a variable to specify column name in ggplot
... on the value if the name is not found. This is actually what happens with select, but not with group_by ... It's possible to hack around it but not obvious. If it's important to you I think it would deserve its own question.
– Moody_Mudskipper
Aug 20 '19 at 23...
How do I drop a function if it already exists?
...
IF EXISTS (
SELECT * FROM sysobjects WHERE id = object_id(N'function_name')
AND xtype IN (N'FN', N'IF', N'TF')
)
DROP FUNCTION function_name
GO
If you want to avoid the sys* tables, you could instead do (from here in example A...
sql “LIKE” equivalent in django query
... = table.objects.filter(string__contains='pattern')
The SQL equivalent is
SELECT ... WHERE string LIKE '%pattern%';
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Android: “Path for project must have only one segment”
... me it was helpful to do the following:
Run -> Run Configurations -> Select Android Application
I don't know why, but there was something called New Application...delete it....after delete everything should work fine
s...
Horizontal ListView in Android?
...he ListView horizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizontal scroll. Share your ...
How to combine class and ID in CSS selector?
...is is super old and people keep finding it: don't use the tagNames in your selectors. #content.myClass is faster than div#content.myClass because the tagName adds a filtering step that you don't need. Use tagNames in selectors only where you must!
...
What is the correct way to restore a deleted file from SVN?
...go to TortoiseSVN -> Merge...
Make sure "Merge a range of revisions" is selected, click Next
In the "Revision range to merge" textbox, specify the revision that removed the file
Check the "Reverse merge" checkbox, click Next
Click Merge
That is completely untested, however.
Edited by OP: Thi...
How to change tab size on GitHub?
... by changing the blob segment with an edit segment and use the dropdown to select your prefered tab size.
Standard view: https://github.com/moroshko/mmSelect/blob/master/mm_select.js
Ace view: https://github.com/moroshko/mmSelect/edit/master/mm_select.js
...
What is “android.R.layout.simple_list_item_1”?
...r the individual rows. There are others with checkedtextviews for multiple selections, you can make custom layouts that include images, and multiple textviews for example. These android.R ones are just some easy to use, already created resources for you.
– Kevin Coppock
...