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What are the differences between numpy arrays and matrices? Which one should I use?
What are the advantages and disadvantages of each?
5 Answers
5
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Convert an image (selected by path) to base64 string
...aved through this process will have its quality horribly degraded. So this setup is definitely not ideal; it's much better to just read the original bytes, as KansaiRobot's answer shows.
– Nyerguds
Jul 24 '19 at 13:58
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I want to remove double quotes from a String
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Assuming:
var someStr = 'He said "Hello, my name is Foo"';
console.log(someStr.replace(/['"]+/g, ''));
That should do the trick... (if your goal is to replace all double quotes).
Here's how it works:
['"] is a character class, matches both single and double quotes. you ca...
Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
Windows下如何判断Win32 or x64？MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用呢？看起来简单，其实是很困惑的。 在 Win3...MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个...
Java String to SHA1
... MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(password.getBytes("UTF-8"));
sha1 = byteToHex(crypt.digest());
}
catch(NoSuchAlgorithmException e)
{
e.printStackTrace();
}
catch(UnsupportedEncodingException e)...
npm failed to install time with make not found error
... I am facing the same problem with MAC OS.Can you please guide me how to set it up for MAC.
– Learner
Nov 19 '14 at 13:03
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Which is more efficient, a for-each loop, or an iterator?
...does depend on the underlying structure. And as a side note, iterating HashSets is also very expensive (much more than an Array List), so avoid those like the plague (if you can).
– Leo
Sep 26 '14 at 11:42
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Python initializing a list of lists [duplicate]
I intend to initialize a list of list with length of n.
1 Answer
1
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Simplest way to profile a PHP script
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The PECL APD extension is used as follows:
<?php
apd_set_pprof_trace();
//rest of the script
?>
After, parse the generated file using pprofp.
Example output:
Trace for /home/dan/testapd.php
Total Elapsed Time = 0.00
Total System Time = 0.00
Total User Time = 0.00
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
I like the window chrome on the new Office Suite and Visual Studio:
6 Answers
6
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