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how to draw smooth curve through N points using javascript HTML5 canvas?
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132
The problem with joining subsequent sample points together with disjoint "curveTo" type functio...
Is there a better way to iterate over two lists, getting one element from each list for each iterati
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answered Dec 17 '09 at 2:03
Roberto BonvalletRoberto Bonvallet
25.9k55 gold badges3737 silver badges5555 bronze badges
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Array slices in C#
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13
Note using Array.Copy performs a lot faster than using LINQ's Take or Skip methods.
– Michael
Jun 23 ...
How to create the most compact mapping n → isprime(n) up to a limit N?
...number with one bit e.g. for the given range of numbers (1, 10], starts at 3: 1110
31 Answers
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop...
Extract first item of each sublist
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Using list comprehension:
>>> lst = [['a','b','c'], [1,2,3], ['x','y','z']]
>>> lst2 = [item[0] for item in lst]
>>> lst2
['a', 1, 'x']
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Common elements comparison between 2 lists
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13 Answers
13
Active
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NameError: global name 'xrange' is not defined in Python 3
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You are trying to run a Python 2 codebase with Python 3. xrange() was renamed to range() in Python 3.
Run the game with Python 2 instead. Don't try to port it unless you know what you are doing, most likely there will be more problems beyond xrange() vs. range().
For the recor...
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,
2 =&g...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
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43
There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we i...