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Check if a key exists inside a json object
...bove is the JSON object I'm dealing with. I want to check if the 'merchant_id' key exists. I tried the below code, but it's not working. Any way to achieve it?
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Android hide listview scrollbar?
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Try to type this in layout xml file
android:scrollbars="none"
Tutorial is here.
http://developer.android.com/reference/android/view/View.html#attr_android:scrollbars
Hope, it helps you
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Remove duplicate rows in MySQL
...de the IGNORE keyword. Like so:
ALTER IGNORE TABLE jobs
ADD UNIQUE INDEX idx_name (site_id, title, company);
This will drop all the duplicate rows. As an added benefit, future INSERTs that are duplicates will error out. As always, you may want to take a backup before running something like thi...
How to select where ID in Array Rails ActiveRecord without exception
When I have array of ids, like
6 Answers
6
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How to do this in Laravel, subquery where in
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Consider this code:
Products::whereIn('id', function($query){
$query->select('paper_type_id')
->from(with(new ProductCategory)->getTable())
->whereIn('category_id', ['223', '15'])
->where('active',...
How to drop column with constraint?
....default_constraints dc
JOIN sys.columns c
ON c.default_object_id = dc.object_id
WHERE
dc.parent_object_id = OBJECT_ID('tbloffers')
AND c.name = N'checkin'
IF @@ROWCOUNT = 0 BREAK
EXEC (@sql)
END
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How do I get the backtrace for all the threads in GDB?
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To save the output to a file: gdb <binary> <coredump> -ex "thread apply all bt" -ex "quit" > output.log
– Doomsday
Mar 28 '18 at 9:32
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How do I get jQuery to select elements with a . (period) in their ID?
...data);
});
});
});
Also check out How do I select an element by an ID that has characters used in CSS notation? on the jQuery FAQ.
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Android TextView Justify Text
... I mentioned in those threads, I found a resolution: if you create an HTML file and place it in the assets, loading it via view.loadUrl() works, whereas view.loadData() does not. I have no clue why the latter doesn't.
– Paul Lammertsma
Sep 12 '11 at 22:13
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How to check an Android device is HDPI screen or MDPI screen?
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type="bool"
name="is_xxhdpi">[bool]</item>
to 4 values.xml files, put these under corresponding res/values-[xxx]/ folders.
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