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Why should I not include cpp files and instead use a header?
...ed my grade. But according to the grading, I lost marks for including cpp files instead of compiling and linking them . I'm not too clear on what that means.
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Select random row from a sqlite table
...extend this solution to a join? When using SELECT a.foo FROM a JOIN b ON a.id = b.id WHERE b.bar = 2 ORDER BY RANDOM() LIMIT 1; I always get the same row.
– Helmut Grohne
Sep 19 '13 at 8:18
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How can I remove or replace SVG content?
... the solution:
d3.select("svg").remove();
This is a remove function provided by D3.js.
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Can a foreign key be NULL and/or duplicate?
.... So your proposal table would have two foreign keys, one with the client ID and one with the sales rep ID. However, at the time the record is created, a sales rep is not always assigned (because no one is free to work on it yet), so the client ID is filled in but the sales rep ID might be null. ...
How to get a ListBox ItemTemplate to stretch horizontally the full width of the ListBox?
... a Silverlight app, and struggling with the ServiceReferences.ClientConfig file, I'm set that I'll avoid (like the plague) ever developing another Silverlight application again. It was a cool idea, but just not impressive.
– Richard B
Jul 24 '12 at 16:47
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Preventing Laravel adding multiple records to a pivot table
...condition like this one :
if (! $cart->items->contains($newItem->id)) {
$cart->items()->save($newItem);
}
Or/and you can add unicity condition in your database, it would throw an exception during an attempt of saving a doublet.
You should also take a look at the more straightf...
Revert changes to a file in a commit
I want to revert changes made by a particular commit to a given file only.
8 Answers
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Reimport a module in python while interactive
...fully imported before. This is useful if you have edited the module source file using an external editor and want to try out the new version without leaving the Python interpreter.
If running Python 3.4 and up, do import importlib, then do importlib.reload(nameOfModule).
Don't forget the caveats ...
How do I undo “Scope to this” in Visual Studio 2012?
... actually acts. When you launch the 2nd window, then toggle the "Show All Files" button, it actually makes the changes in both windows.
– vapcguy
Oct 25 '17 at 0:17
1
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Concatenate multiple files but include filename as section headers
I would like to concatenate a number of text files into one large file in terminal. I know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
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