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python-pandas and databases like mysql
...()
And here is the equivalent example for MySQLdb:
import MySQLdb
mysql_cn= MySQLdb.connect(host='myhost',
port=3306,user='myusername', passwd='mypassword',
db='information_schema')
df_mysql = pd.read_sql('select * from VIEWS;', con=mysql_cn)
print 'loaded da...
Permutations in JavaScript?
...er('fastest').map('name'));
})
.run({async: true});
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/platform/1.3.4/platform.min.js"></script>
<script src="https://cdn...
Can functions be passed as parameters?
...string { return "" })
}
Play: http://play.golang.org/p/XNMtrDUDS0
Tour: https://tour.golang.org/moretypes/25 (Function Closures)
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How to make HTML input tag only accept numerical values?
...ke sure your html document's doctype is:
<!DOCTYPE html>
See also https://github.com/jonstipe/number-polyfill for transparent support in older browsers.
JavaScript
Update: There is a new and very simple solution for this:
It allows you to use any kind of input filter on a text <inp...
passing several arguments to FUN of lapply (and others *apply)
...iple Lists or Vector Arguments:
mapply(myfun, arg1, arg2)
See man page:
https://stat.ethz.ch/R-manual/R-devel/library/base/html/mapply.html
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How can I find the length of a number?
...
Ok, so many answers, but this is a pure math one, just for the fun or for remembering that Math is Important:
var len = Math.ceil(Math.log(num + 1) / Math.LN10);
This actually gives the "length" of the number even if it's in exponential form. num is supposed to be a non negative integ...
PHPMyAdmin Default login password [closed]
... answered Apr 28 '11 at 12:11
Syed QaribSyed Qarib
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手把手教你用Strace诊断问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...主因。
不过在 CPU 列表中能看到 CPU 主要消耗在内核态「sy」，而不是用户态「us」，和我们的经验不符。Linux 操作系统有很多用来跟踪程序行为的工具，内核态的函数调用跟踪用「strace」，用户态的函数调用跟踪用「ltrace」，...
How can I use speech recognition without the annoying dialog in android phones
...ect to convert Text to speech and speech to text without annoying dialog,
https://github.com/hiteshsahu/Android-TTS-STT/tree/master/app/src/main/java/com/hiteshsahu/stt_tts/translation_engine
//SPEECH TO TEXT DEMO
speechToText.setOnClickListener({ view ->
Snackbar.make(view, "Spea...
I don't remember my android debug.keystore password
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...