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Difference between “or” and || in Ruby? [duplicate]
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Here's a ruby operator precedence table.
See this question for another example using and/&&.
Also, be aware of some nasty things that could happen:
a = false || true #=> true
a #=> true
a = false or true #=> true
a #=> false
Both of the previous two statements evalua...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
Per the MySQL docs , there are four TEXT types:
4 Answers
4
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How to change identity column values programmatically?
...following structure
CREATE TABLE Test
(
ID INT IDENTITY(1,1) PRIMARY KEY,
X VARCHAR(10)
)
INSERT INTO Test
OUTPUT INSERTED.*
SELECT 'Foo' UNION ALL
SELECT 'Bar' UNION ALL
SELECT 'Baz'
Then you can do
/*Define table with same structure but no IDENTITY*/
CREATE TABLE Temp
(
ID INT PRIMARY KEY,
X...
Hide keyboard when scroll UITableView
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For those who forgets, you still needs to make UITextfield resign first responder.
– skyline75489
Dec 23 '15 at 4:04
1
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Create nice column output in python
..., 'c'], ['aaaaaaaaaa', 'b', 'c'], ['a', 'bbbbbbbbbb', 'c']]
col_width = max(len(word) for row in data for word in row) + 2 # padding
for row in data:
print "".join(word.ljust(col_width) for word in row)
a b c
aaaaaaaaaa b c
a ...
How do I parse a string to a float or int?
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def num(s):
try:
return int(s)
except ValueError:
return float(s)
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How do I calculate the date six months from the current date using the datetime Python module?
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hasNext in Python iterators?
Haven't Python iterators got a hasNext method?
13 Answers
13
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Difference between Control Template and DataTemplate in WPF
...ol is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however, generally appear so that they can present data for the user.
A DataTemplate, therefor...
Difference between two lists
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Using Except is exactly the right way to go. If your type overrides Equals and GetHashCode, or you're only interested in reference type equality (i.e. two references are only "equal" if they refer to the exact same object), you can ...