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Best way to iterate through a Perl array
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In terms of speed: #1 and #4, but not by much in most instances.
You could write a benchmark to confirm, but I suspect you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying of the ...
Delete all but the most recent X files in bash
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answered Jan 18 '16 at 19:24
mklement0mklement0
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Fastest way to convert string to integer in PHP
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intval("123"): 1.0115 (183%)
(int) "0": 0.42461
intval("0"): 0.95683 (225%)
(int) int: 0.1502
intval(int): 0.65716 (438%)
(int) array("a", "b"): 0.91264
intval(array("a", "b")): 1.47681 (162%)
(int) "hello": ...
How to avoid scientific notation for large numbers in JavaScript?
... use BigInt for it: BigInt(n).toString()
Example:
const n = 13523563246234613317632;
console.log("toFixed (wrong): " + n.toFixed());
console.log("BigInt (right): " + BigInt(n).toString());
Beware, though, that any integer you output as a JavaScript number (not a BigInt) that's more t...
Initializing a list to a known number of elements in Python [duplicate]
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Steve LoshSteve Losh
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19
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What does this square bracket and parenthesis bracket notation mean [first1,last1)?
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4 Answers
4
Active
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Why are elementwise additions much faster in separate loops than in a combined loop?
...while. But in reality, the performance isn't completely uniform. Accessing 4-ways is still slower than say 2-ways.
EDIT: It does in fact look like you are allocating all the arrays separately.
Usually when such large allocations are requested, the allocator will request fresh pages from the OS. Ther...
How to replace a character by a newline in Vim
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edited Aug 31 at 13:48
answered Sep 16 '08 at 11:21
K...
Why is the gets function so dangerous that it should not be used?
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In order to use gets safely, you have to know exactly how many characters you will be reading, s...