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how to detect search engine bots with php?
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Erm, strpos returns FALSE on failure, too. It's faster and more efficient, though (no preprocessing, and no O(m) storage).
– Damon
Apr 14 '14 at 10:19
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Copy array items into another array
...so I just benchmarked the situation: concat vs. push.apply. Google Chrome: fast (concat = winner), Opera: fast (concat = winner), IE: slower (concat = winner), Firefox: slow (push.apply = winner, yet 10 times slower than Chrome's concat) ... speak of bad JS engine implementation.
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quick random row selection in Postgres
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PostgreSQL 9.5 introduced a new approach for much faster sample selection: TABLESAMPLE
The syntax is
SELECT * FROM my_table TABLESAMPLE BERNOULLI(percentage);
SELECT * FROM my_table TABLESAMPLE SYSTEM(percentage);
This is not the optimal solution if you want only one ro...
PHP UML Generator [closed]
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I strongly recommend BOUML which:
is extremely fast (fastest UML tool ever created, check out benchmarks),
has rock solid PHP import and export support (also supports C++, Java, Python)
is multiplatform (Linux, Windows, other OSes),
is full featured, impressively intensiv...
When would you use the different git merge strategies?
...ve, but I've used the others:
Recursive
Recursive is the default for non-fast-forward merges. We're all familiar with that one.
Octopus
I've used octopus when I've had several trees that needed to be merged. You see this in larger projects where many branches have had independent development an...
Remove characters except digits from string using Python?
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In Python 2.*, by far the fastest approach is the .translate method:
>>> x='aaa12333bb445bb54b5b52'
>>> import string
>>> all=string.maketrans('','')
>>> nodigs=all.translate(all, string.digits)
>>> x.tran...
Fastest way to copy file in node.js
...stem (copying/reading/writing etc). I'd like to know which methods are the fastest, and I'd be happy to get an advice. Thanks.
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How to swap two variables in JavaScript
...e V8 version 6.8, swapping variables with array destructuring should be as fast as with a temporary variable (v8project.blogspot.com/2018/06/v8-release-68.html).
– Ruben Verborgh
Aug 21 '18 at 1:47
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...ier still often does a great job in practice. A good bet if want something fast and easy that performs pretty well. Its main disadvantage is that it can’t learn interactions between features (e.g., it can’t learn that although you love movies with Brad Pitt and Tom Cruise, you hate movie...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...ier still often does a great job in practice. A good bet if want something fast and easy that performs pretty well. Its main disadvantage is that it can’t learn interactions between features (e.g., it can’t learn that although you love movies with Brad Pitt and Tom Cruise, you hate movie...