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How to create a GUID/UUID in Python
...203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93f654fdbb24c02b15259716c'
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How can I convert a string to a number in Perl?
...
This is a simple solution:
Example 1
my $var1 = "123abc";
print $var1 + 0;
Result
123
Example 2
my $var2 = "abc123";
print $var2 + 0;
Result
0
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how to avoid a new line with p tag?
...ter;
align-content: center;
align-items:center;
border:1px solid #e3f2fd;
}
.item{
flex: 1 1 auto;
border:1px solid #ffebee;
}
<div class="box">
<p class="item">A</p>
<p class="item">B</p>
<p class="item">C</p>
</div>
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What is the point of function pointers?
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case e2: ....
case B:
switch (event):
case e3: ....
case e1: ....
you can make a 2d array of function pointers and just call handleEvent[state][event]
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M_PI works with math.h but not with cmath in Visual Studio
...iled headers, see for example
https://msdn.microsoft.com/en-us/library/1hy7a92h.aspx
It would be nice if MS would change/fix this. I teach introductory programming courses at a large university, and explaining this to newbies never sinks in until they've made the mistake and struggled with it fo...
Difference between == and ===
... me at least))
With strings we will have to get used to this:
var st = "123" // "123"
var ns = (st as NSString) // "123"
st == ns // true, content equality
st === ns // ...
How to get the data-id attribute?
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To get the contents of the attribute data-id (like in <a data-id="123">link</a>) you have to use
$(this).attr("data-id") // will return the string "123"
or .data() (if you use newer jQuery >= 1.4.3)
$(this).data("id") // will return the number 123
and the part after data- ...
Test whether string is a valid integer
...of "+" (e.g. +30) which obviously is an integer.
Results:
$ int_check.sh 123
123 is an integer !!
$ int_check.sh 123+
ERROR: first parameter must be an integer.
$ int_check.sh -123
-123 is an integer !!
$ int_check.sh +30
+30 is an integer !!
$ int_check.sh -123c
ERROR: first parameter must be...
Streaming Audio from A URL in Android using MediaPlayer?
.../android/news/PlaybackService.java?r=7cf2352b5c3c0fbcdc18a5a8c67d836577e7e8e3
And this is the StreamProxy class: http://code.google.com/p/npr-android-app/source/browse/Npr/src/org/npr/android/news/StreamProxy.java?r=e4984187f45c39a54ea6c88f71197762dbe10e72
The NPR app is also still getting the "er...
How to check if remote branch exists on a given remote repository?
...82b882e31612431a56f830bdc1076f refs/heads/2-0-stable
b5d759fd2848146f7ee7a4c1b1a4be39e2f1a2bc refs/heads/2-1-stable
c6cb5a5ab00ac9e857e5b2757d2bce6a5ad14b32 refs/heads/2-2-stable
e0774e47302a907319ed974ccf59b8b54d32bbde refs/heads/2-3-stable
13ad87971cc16ebc5c286b484821e2cb0fc3e3b1 re...