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REST HTTP status codes for failed validation or invalid duplicate
...The only other alternative is 422 Unprocessable Entity. It actually comes from WebDav but it is perfectly valid to reuse any status code that has been registered with IANA.
– Darrel Miller
Jul 20 '10 at 19:38
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Default parameters with C++ constructors [closed]
...defaults for all but one parameter, your class can be implicitly converted from that parameter type. Check out this thread for more info.
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How to sort Map values by key in Java?
...shSet. Roughly speaking operations that find or insert an element will go from O(1) to O(Log(N)).
In a HashMap, moving from 1000 items to 10,000 doesn't really affect your time to lookup an element, but for a TreeMap the lookup time will be about 3 times slower (assuming Log2). Moving from 1000 t...
Using tags to turn off caching in all browsers? [duplicate]
...-cache (100% conditional requests afterwards). "no-store" sometimes loaded from cache without even attempting a conditional request. Firefox responds better to "no-store" but still sometimes loads from cache if you reload immediately afterwords. What a mess!
– ianbeks
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How can I plot separate Pandas DataFrames as subplots?
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You can see e.gs. in the documentation demonstrating joris answer. Also from the documentation, you could also set subplots=True and layout=(,) within the pandas plot function:
df.plot(subplots=True, layout=(1,2))
You could also use fig.add_subplot() which takes subplot grid parameters such ...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...of TemperatureTimestamps > 100 then
remove list item at position 1 from TemperatureTimestamps
remove list item at position 1 from TemperatureValues
end if
// 更新图表显示
call updateTemperatureChart
// 更新温度图表
procedure updateTemperatureChart
do
// ...
What does “exited with code 9009” mean during this build?
...y, but seems to get up by VS. If there was a way to view the env variables from inside VS I could confirm this.
– jamiebarrow
Oct 7 '14 at 9:32
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How to obtain the start time and end time of a day?
...orks of Java (java.util.Date/Calendar and Joda-Time) both use milliseconds from the epoch. But in Java 8, the new JSR 310 java.time.* classes use nanoseconds resolution. Any code you wrote based on forcing the milliseconds count of last moment of day would be incorrect if switched to the new classes...
What is the overhead of creating a new HttpClient per call in a WebAPI client?
...t with a new HttpClient requires re-establishing a new TCP/IP connection.
From my tests, using plain HTTP on a LAN, the performance hit is fairly negligible. I suspect this is because there is an underlying TCP keepalive that is holding the connection open even when HttpClientHandler tries to clos...
Python: What OS am I running on?
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I'd have thought it's more likely you upgraded from Windows 8 (vs. it being a clean install) and whatever Python looks up in the registry or whatever was left behind?
– OJFord
Jan 30 '18 at 20:53
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