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How to check version of python modules?
I just installed the python modules: construct and statlib with setuptools like this:
25 Answers
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How to remove item from array by value? [duplicate]
... function() {
var what, a = arguments, L = a.length, ax;
while (L && this.length) {
what = a[--L];
while ((ax = this.indexOf(what)) !== -1) {
this.splice(ax, 1);
}
}
return this;
};
var ary = ['three', 'seven', 'eleven'];
ary.remove('seve...
Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
14 Answers
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Smart way to truncate long strings
...given length n, clip it to length n (substr or slice) and add html entity … (…) to the clipped string.
Such a method looks like
function truncate(str, n){
return (str.length > n) ? str.substr(0, n-1) + '…' : str;
};
If by 'more sophisticated' you mean truncating at t...
Find intersection of two nested lists?
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@S.Lott, anything wrong with set(b1) & set(b2)? IMO its cleaner to use the operator.
– gwg
Feb 19 '15 at 23:18
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How to hash some string with sha256 in Java?
...native is Guava which has an easy-to-use suite of Hashing utilities. For example, to hash a string using SHA256 as a hex-string you would simply do:
final String hashed = Hashing.sha256()
.hashString("your input", StandardCharsets.UTF_8)
.toString();
...
how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)
...
If you're open to a PHP solution:
<td><img src='<?PHP
$path1 = "path/to/your/image.jpg";
$path2 = "alternate/path/to/another/image.jpg";
echo file_exists($path1) ? $path1 : $path2;
?>' alt='' />
</td>
////EDI...
Difference between objectForKey and valueForKey?
...ex).
valueForKey: is a KVC method. It works with ANY class. valueForKey: allows you to access a property using a string for its name. So for instance, if I have an Account class with a property accountNumber, I can do the following:
NSNumber *anAccountNumber = [NSNumber numberWithInt:12345];
Acco...
How to join strings in Elixir?
...(a specific type of a deep list), which saves you from copying data. For example,
iex(1)> IO.puts(["StringA", " ", "StringB"])
StringA StringB
:ok
Since you would have those strings as variables somewhere, by using a deep list, you avoid allocating a whole new string just to output it elsewher...
Append TimeStamp to a File Name
... to a file using the Path class and string manipulation is not an issue at all. this only an alternative to DateTime.ToString Method (String) or string.Format("{0:yyyy-MM-dd_hh-mm-ss-tt}",DateTime.Now);
– Joseph
Jun 26 '17 at 11:50
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