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What is JSON and why would I use it?
...languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.
JSON Structure
Here is an example of JSON data:
{
"firstName":...
What does axis in pandas mean?
...me2 on top of dataframe1 or vice a versa.
E.g making a pile of books on a table or floor
axis=1 means along "columns". It's a column-wise operation.
Suppose, to perform concat() operation on dataframe1 & dataframe2,
we will take out the 1st complete column(a.k.a 1st series) of dataframe1 an...
Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
...u need to use the dequeueReusableCellWithIdentifier: for that behavior:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
Notice that dequeueReusableCellWithIdentifier: and dequeueReusableCellWithIdentifier:forIndexPath: are different methods. See doc for the f...
Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
...be NVARCHAR
DECLARE @SQL VARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
So:
DECLARE @SQL NVARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
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Image comparison - fast algorithm
I'm looking to create a base table of images and then compare any new images against that to determine if the new image is an exact (or close) duplicate of the base.
...
Is there a way to make AngularJS load partials in the beginning and not at when needed?
...e the url forexample: $http.get('app/correction/templates/group-correction-table.html', {cache:$templateCache}); and then whenever I want to load the template I have to use this ugly name :( which I don't like, Like this: <td ng-include="'app/correction/templates/group-correction-table.html'">...
Get second child using jQuery
...As in $(t).find('td').eq(1) to get the second <td>, if t was, say, a table and I needed to look down more than 1 node?
– Justin L.
Sep 8 '16 at 1:05
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What happens if you don't commit a transaction to a database (say, SQL Server)?
... looks from outside the transaction. Depending on the isolation level, the table may be locked until the first window is committed, or you might (not) see what the other transaction has done so far, etc.
Play around with the different isolation levels and no lock hint to see how they affect the res...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...ally run into them.
As for testing index usage you should first fill your table with some data to make optimizer think it's actually worth to use that index.
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Empty arrays seem to equal true and false at the same time
...to Boolean, they are always coerced to TRUE. look at the "Boolean context" table at: javascript.info/tutorial/object-conversion
– Niki
Jun 7 '16 at 2:04
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