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Find the version of an installed npm package
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2691
npm list for local packages or npm list -g for globally installed packages.
You can find the ve...
What is the difference between Numpy's array() and asarray() functions?
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125
Since other questions are being redirected to this one which ask about asanyarray or other arr...
What is the difference between 127.0.0.1 and localhost
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124
Well, the most likely difference is that you still have to do an actual lookup of localhost so...
Printing tuple with string formatting in Python
So, i have this problem.
I got tuple (1,2,3) which i should print with string formatting.
eg.
14 Answers
...
Traverse a list in reverse order in Python
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1254
Use the built-in reversed() function:
>>> a = ["foo", "bar", "baz"]
>>> fo...
What's the difference between lists enclosed by square brackets and parentheses in Python?
...A list is mutable, meaning you can change its contents:
>>> x = [1,2]
>>> x.append(3)
>>> x
[1, 2, 3]
while tuples are not:
>>> x = (1,2)
>>> x
(1, 2)
>>> x.append(3)
Traceback (most recent call last):
File "<stdin>", line 1, in <m...
Which SQL query is faster? Filter on Join criteria or Where clause?
...LEFT JOIN
TableXRef x
ON x.TableAID = a.ID
AND a.ID = 1
LEFT JOIN
TableB b
ON x.TableBID = b.ID
or this:
SELECT *
FROM TableA a
LEFT JOIN
TableXRef x
ON x.TableAID = a.ID
LEFT JOIN
TableB b
ON b.id = x.TableBID
WHERE a.id = 1
The...
Is there any boolean type in Oracle databases?
...
11 Answers
11
Active
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PHP: merge two arrays while keeping keys instead of reindexing?
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You can simply 'add' the arrays:
>> $a = array(1, 2, 3);
array (
0 => 1,
1 => 2,
2 => 3,
)
>> $b = array("a" => 1, "b" => 2, "c" => 3)
array (
'a' => 1,
'b' => 2,
'c' => 3,
)
>> $a + $b
array (
0 => 1,
1 => 2,
...
The modulo operation on negative numbers in Python
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134
Unlike C or C++, Python's modulo operator (%) always return a number having the same sign as t...