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Is there a generator version of `string.split()` in Python?
...rsion of str.split()
:param source:
source string (unicode or bytes)
:param sep:
separator to split on.
:param regex:
if True, will treat sep as regular expression.
:returns:
generator yielding elements of string.
"""
if sep is None:
...
Purpose of returning by const value? [duplicate]
...erform a potentially expensive non-const operation on an object, returning by const-value prevents you from accidentally calling this operation on a temporary. Imagine that + returned a non-const value, and you could write:
(a + b).expensive();
In the age of C++11, however, it is strongly advised...
What's the difference between unit, functional, acceptance, and integration tests? [closed]
...brings us to ...
Integration Tests
Integration tests build on unit tests by combining the units of code and testing that the resulting combination functions correctly. This can be either the innards of one system, or combining multiple systems together to do something useful. Also, another thing...
python list by value not by reference [duplicate]
... a general understanding, it seems to be like the same problem encountered by the op at the second layer. How does it work internally?
– AsheKetchum
Feb 21 '17 at 15:59
...
Swift - class method which must be overridden by subclass
...make a "pure virtual function" in Swift, ie. one that must be overridden by every subclass, and which, if it is not, causes a compile time error?
...
Nearest neighbors in high-dimensional data?
...1][3]. But unlike traditional hashes, a locality-sensitive hash places nearby points into the same bin.
LSH has some huge advantages. First, it is simple. You just compute the hash for all points in your database, then make a hash table from them. To query, just compute the hash of the query point,...
Why use strict and warnings?
...hy is it made optional then if it has so many benefits ? Why not enable it by default (like someone commented above) ? Is it for compatibility reasons ?
– Jean
Sep 26 '13 at 16:11
...
How to read from stdin line by line in Node
...
You can use the readline module to read from stdin line by line:
var readline = require('readline');
var rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
terminal: false
});
rl.on('line', function(line){
console.log(line);
})
...
How to replace an entire line in a text file by line number
...k:
sed -i 'Ns/.*/replacement-line/' file.txt
where N should be replaced by your target line number. This replaces the line in the original file. To save the changed text in a different file, drop the -i option:
sed 'Ns/.*/replacement-line/' file.txt > new_file.txt
...
How do I create a copy of an object in PHP?
It appears that in PHP objects are passed by reference. Even assignment operators do not appear to be creating a copy of the Object.
...