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Way to get all alphabetic chars in an array in PHP?
...118] => DO [119] => DP [120] => DQ [121] => DR [122] => DS [123] => DT [124] => DU )
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How to find out what type of a Mat object is with Mat::type() in OpenCV
...epth = type & CV_MAT_DEPTH_MASK;
uchar chans = 1 + (type >> CV_CN_SHIFT);
switch ( depth ) {
case CV_8U: r = "8U"; break;
case CV_8S: r = "8S"; break;
case CV_16U: r = "16U"; break;
case CV_16S: r = "16S"; break;
case CV_32S: r = "32S"; break;
case CV_32F: r ...
What linux shell command returns a part of a string? [duplicate]
...
In bash you can try this:
stringZ=abcABC123ABCabc
# 0123456789.....
# 0-based indexing.
echo ${stringZ:0:2} # prints ab
More samples in The Linux Documentation Project
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Static/Dynamic vs Strong/Weak
...implemented in the high-level language. For example, Objective Caml has a function called Obj.magic which has the run-time effect of simply returning its argument, but at compile time it converts a value of any type to one of any other type. My favorite example is Modula-3, whose designers called ...
What are JavaScript's builtin strings?
...I would like to thank Jason and all the contributors for playing with that funny snippet. I have written that piece of code just for fun in order to send it to my wife on February 14 :) Having only Chrome installed on the laptop I had no options to check how it works in Firefox and IE. Moreover, I h...
Received fatal alert: handshake_failure through SSLHandshakeException
...rs may ignore this, but the same is not the case for SSL clients (like the HttpsURLConnection class, or any HTTP Client library like Apache HttpComponents Client).
Most these client classes/libraries would rely on the trust store used by the JVM for certificate validation. In most cases, this will ...
Store password in TortoiseHg
...nsion instead. See another answer here.
You can change your push URL to https://username:password@hostname.com/repo.
This is explained in Google Code's and Mercurial's FAQs.
EDIT: Mercurial FAQ explains another way to do it:
With Mercurial 1.3 you can also add an auth section to your hgrc fi...
How do you use vim's quickfix feature?
...en it if there are "errors", close it otherwise (some people prefer this)
:cn " Go to the next error in the window
:cp " Go to the previous error in the window
:cnf " Go to the first error in the next file
:.cc " Go to error under cursor (if cursor is in quickfix window)
I tend to use th...
How to check certificate name and alias in keystore files?
...ven command will yield all aliases containing the pattern 'foo', f.e. foo, 123_FOO, fooBar, etc. For more information man grep.
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Detecting a mobile browser
...@Gajus pointed out, this solution is now deprecated and shouldn't be used (https://developer.mozilla.org/en-US/docs/Web/API/Window/orientation)
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