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Array.push() if does not exist?
... It is better to extend Array prototype with JavaScript 1.6 method IndexOf instead of your inArray.
– Eugene Gluhotorenko
Jul 1 '13 at 8:16
7
...
What is the difference between an ordered and a sorted collection?
... concepts are similar.
List is an ordered collection: each element has an index, which forms an ordering of the elements, but not usually related to any property of the elements themselves.
SortedMap and SortedSet are sorted collections, which means that iteration through the collection will happe...
SQL error “ORA-01722: invalid number”
...
In my case the conversion error was in functional based index, that I had created for the table.
The data being inserted was OK. It took me a while to figure out that the actual error came from the buggy index.
Would be nice, if Oracle could have gave more precise error message...
How to get the list of all installed color schemes in Vim?
...e function I do something like this:
let s:schemes = GetColorSchemes()
if index(s:schemes, 'solarized') >= 0
colorscheme solarized
elseif index(s:schemes, 'darkblue') >= 0
colorscheme darkblue
endif
Which means I prefer the 'solarized' and then the 'darkblue' schemes; if none of them ...
How to get the type of T from a member of a generic class or method?
...abc.GetType().GetGenericArguments()[0];
Another option is to look at the indexer:
Type type = abc.GetType().GetProperty("Item").PropertyType;
Using new TypeInfo:
using System.Reflection;
// ...
var type = abc.GetType().GetTypeInfo().GenericTypeArguments[0];
...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...EN 1 AND
99999999, the DBMS may select a
full-table scan instead of an index
scan because you're grabbing every row
in the table (so sayeth the
statistics). If this is the cached
version, then you can get poor
performance when you later send
SELECT * FROM table WHERE id BETWEEN
1 A...
Difference between __str__ and __repr__?
...above, not %s. You always want to use repr() [or %r formatting character, equivalently] inside __repr__ implementation, or you’re defeating the goal of repr. You want to be able to differentiate MyClass(3) and MyClass("3").
The goal of __str__ is to be readable
Specifically, it is not intended t...
Reading an Excel file in python using pandas
... = pd.io.parsers.ExcelFile.parse(xl, "Sheet1")
>>> parsed.columns
Index([u'Tid', u'dummy1', u'dummy2', u'dummy3', u'dummy4', u'dummy5', u'dummy6', u'dummy7', u'dummy8', u'dummy9'], dtype=object)
share
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...
Append integer to beginning of list in Python [duplicate]
...var)
>>>array
[7, 1, 2, 3, 4, 5, 6]
How it works:
array.insert(index, value)
Insert an item at a given position. The first argument is the index of the element before which to insert, so array.insert(0, x) inserts at the front of the list, and array.insert(len(array), x) is equivalent t...
Android: Coloring part of a string using TextView.setText()?
... I initially missed this when reading the answer, but your end index has to be +1 the ending index in the string (i.e. to span first four letters you have to set [start, end] as [0, 4] not [0, 3] )
– tir38
May 19 '16 at 3:37
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