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How to obtain the last path segment of a URI
...= uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
int id = Integer.parseInt(idStr);
alternatively
URI uri = new URI("http://example.com/foo/bar/42?param=true");
String[] segments = uri.getPath().split("/");
String idStr = segments[segments.length-1];
int id = Integer.pars...
How can I get the count of milliseconds since midnight for the current?
...the implementation. From the docs for Date: "A second is represented by an integer from 0 to 61; the values 60 and 61 occur only for leap seconds and even then only in Java implementations that actually track leap seconds correctly. Because of the manner in which leap seconds are currently introduce...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...eView. And that was because I listened to the Android Studio telling me to convert the listener to a local variable.
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pandas dataframe columns scaling with sklearn
...s a single feature or X.reshape(1, -1)
if it contains a single sample.
Converting your columns to numpy arrays should do the job (I prefer StandardScaler):
from sklearn.preprocessing import StandardScaler
scale = StandardScaler()
dfTest[['A','B','C']] = scale.fit_transform(dfTest[['A','B','C']...
Are nested try/except blocks in python a good programming practice?
...more complicated situations you may be right, but I think that when you're converting between exception types you often know that the details of the first exception don't matter to the outside user. That is, if __getattr__ raises an exception the bug is probably a typo in the attribute access, not a...
When should I use Arrow functions in ECMAScript 6?
... for much else.
Where an object constructor is needed one should consider converting the function to a class as shown above. The syntax works with anonymous functions/classes as well.
Readability of arrow functions
The probably best argument for sticking to regular functions - scope safety be da...
Create a dictionary with list comprehension
...lter part to the end:
>>> mydict = {k: v for k, v in blahs if not int(k[-1]) % 2}
>>> mydict
{'blah0': 'blah', 'blah2': 'blah'}
Here we are just testing for if the last character is divisible by 2 to filter out data before mapping the keys and values.
...
Why do my list item bullets overlap floating elements
...he only working remedy for this issue with Prince XML, a XHTML+CSS3 to PDF converter.
– Serge Stroobandt
Apr 4 '15 at 2:38
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What is stdClass in PHP?
...
True. I frequently use json_encode and json_decode to convert array to object to array, when necessary.
– pinkal vansia
Sep 5 '13 at 10:05
6
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Is PHP compiled or interpreted?
... the runtime engine.
The PHP compiler's job is to parse your PHP code and convert it into a form suitable for the runtime engine. Among its tasks:
Ignore comments
Resolve variables, function names, and so forth and create the symbol table
Construct the abstract syntax tree of your program
Write t...