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Is there a way to iterate over a slice in reverse in Go?
...dex
for k := range s {
k = len(s) - 1 - k
// now k starts from the end
}
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Doing a cleanup action just before Node.js exits
...f the following code is only needed for test demo
// Prevents the program from closing instantly
process.stdin.resume();
// Emits an uncaught exception when called because module does not exist
function error() {
console.log('error');
var x = require('');
};
// Try each of the following one a...
What is the difference between const_iterator and non-const iterator in the C++ STL?
... method signatures.
Much like const and non-const, you can convert easily from non-const to const, but not the other way around:
std::vector<int> v{0};
std::vector<int>::iterator it = v.begin();
// non-const to const.
std::vector<int>::const_iterator cit = it;
// Compile time e...
Finding the index of an item in a list
... itertools.count() (which is pretty much the same approach as enumerate):
from itertools import izip as zip, count # izip for maximum efficiency
[i for i, j in zip(count(), ['foo', 'bar', 'baz']) if j == 'bar']
This is more efficient for larger lists than using enumerate():
$ python -m timeit -s...
When do you use varargs in Java?
...e, the list is not modified by the method).
Additionally, I would refrain from using f(Object... args) because its slips towards a programming way with unclear APIs.
In terms of examples, I have used it in DesignGridLayout, where I can add several JComponents in one call:
layout.row().grid(new JL...
Sending “User-agent” using Requests library in Python
...
url = 'SOME URL'
headers = {
'User-Agent': 'My User Agent 1.0',
'From': 'youremail@domain.com' # This is another valid field
}
response = requests.get(url, headers=headers)
If you're using requests v2.12.x and older
Older versions of requests clobbered default headers, so you'd want t...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
I'm working on a CMS that fetches a user's profile image from their Facebook URL (that is, http://facebook.com/users_unique_url ). How can I accomplish this? Is there a Faceboook API call that fetches a user's profile image URL without the user needing to Allow the application?
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...ntioned in doc:
Returns a stream of int zero-extending the char values from this
sequence. Any char which maps to a surrogate code point is passed
through uninterpreted. If the sequence is mutated while the stream is
being read, the result is undefined.
The method codePoints() also retur...
Converting an object to a string
...
Link to JSON library doesn't work if clicked from StackOverflow. Copy and paste it in the address bar.
– f.ardelian
Nov 3 '12 at 12:48
2
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What is the point of noreturn?
...mpson If a call to a noreturn function is wrapped in a try-block, any code from the catch block on will count as reachable again.
– sepp2k
Jun 24 '16 at 8:15
2
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