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How do I use vi keys in ipython under *nix?
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Where do I add my custom key binding mappings?
– Aravinda
Jul 21 '16 at 12:17
My ...
How do I put a border around an Android textview?
... What if I just want the top border?
– happyhardik
Aug 1 '12 at 17:55
19
@whyoz His ...
What's the purpose of META-INF?
...>
<manifest>
<attribute name="Main-Class" value="MyApplication"/>
</manifest>
</jar>
At least, I think that's easy... :-)
The point is that META-INF should be considered an internal Java meta directory. Don't mess with it! Any files you want to includ...
Using Java 8 to convert a list of objects into a string obtained from the toString() method
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One simple way is to append your list items in a StringBuilder
List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
StringBuilder b = new StringBuilder();
list.forEach(b::append);
Sys...
Explain the “setUp” and “tearDown” Python methods used in test cases
...top in the place where it was started - this means that we have to restore app state to it's initial state - e.g close files, connections, removing newly created items, calling transactions callback and so on - all these steps are to be included into the tearDown.
So the idea is that test itself sh...
Fast way to discover the row count of a table in PostgreSQL
...acy depends on more factors:
Distribution of row size. If a given block happens to hold wider than usual rows, the count is lower than usual etc.
Dead tuples or a FILLFACTOR occupy space per block. If unevenly distributed across the table, the estimate may be off.
General rounding errors.
In mos...
In STL maps, is it better to use map::insert than []?
...y << " with value " << value << endl;
}
For most of my apps, I usually don't care if I'm creating or replacing, so I use the easier to read map[key] = value.
share
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improve this...
Button in a column, getting the row from which it came on the Click event handler
...on template column resource I can use to delete pretty much anything in my app.
– Eric
Sep 18 '14 at 22:36
add a comment
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Make function wait until element exists
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A more modern approach to waiting for elements:
while(!document.querySelector(".my-selector")) {
await new Promise(r => setTimeout(r, 500));
}
// now the element is loaded
Note that this code would need to be wrapped in an async fu...
Link latest file on Bitbucket Git repository
...aw url of a image in my private repo, it redirects to bytebucket.org & append a token so that it can be viewed publicly...like https://bytebucket.org/$username/$repo/raw/$sha/$filename.jpg?token=$sometoken. But the token is different for each file. Is there any way I can get/generate this type o...