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Should 'using' directives be inside or outside the namespace?
...ectives within each of the namespace elements, rather than globally at the top of the file. This will scope the namespaces tightly, and will also help to avoid the kind of behavior described above.
It is important to note that when code has been written with using directives placed outside of the n...
How do I check if there are duplicates in a flat list?
...y:
if next(getDupes(l)): return True # Found a dupe
except StopIteration:
pass
return False
def decompose(a_list):
return reduce(
lambda u, o : (u[0].union([o]), u[1].union(u[0].intersection([o]))),
a_list,
(set(), set()))
@b.add_function()
de...
Read an Excel file directly from a R script
...work with tabular data stored
in a single sheet.
readxl is built on top of the libxls C library, which abstracts away
many of the complexities of the underlying binary format.
It supports both the legacy .xls format and .xlsx
readxl is available from CRAN, or you can install it fr...
How can I parse a CSV string with JavaScript, which contains comma in data?
...dit history
2014-05-19: Added disclaimer.
2014-12-01: Moved disclaimer to top.
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How do I measure request and response times at once using cURL?
...re total time:
curl -o /dev/null -s -w 'Total: %{time_total}s\n' https://www.google.com
Sample output:
Option 2. To get time to establish connection, TTFB: time to first byte and total time:
curl -o /dev/null -s -w 'Establish Connection: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal:...
How do I control how Emacs makes backup files?
...ves files - based on counting keystrokes (auto-save-interval) or when you stop typing (auto-save-timeout).
Emacs also auto-saves whenever it crashes, including killing the Emacs job with a shell command.
When the user saves the file, the auto-saved version is deleted. But when the user exits the...
Check if an element's content is overflowing?
...
@Harry: It's supported in all current browsers (desktop ones at least), so it doesn't matter that it's formally nonstandard.
– Marat Tanalin
Mar 7 '12 at 23:03
...
How to define a List bean in Spring?
...ows:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
...
What is an “unwrapped value” in Swift?
... of the fact that the optional value is wrapped. There is another layer on top of it. The unwrapped version just shows the straight object because it is, well, unwrapped.
A quick playground comparison:
In the first and second cases, the object is not being automatically unwrapped, so you see two...
What is correct HTTP status code when redirecting to a login page?
...hentication mechanism.
401 Unauthorized status code requires presence of WWW-Authenticate header that supports various authentication types:
WWW-Authenticate: <type> realm=<realm>
Bearer, OAuth, Basic, Digest, Cookie, etc
Hypertext Transfer Protocol (HTTP) Authentication Scheme...