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Running a cron every 30 seconds
...ute boundary and to
# gradually increase maximum payload duration to
# see what happens when the payload exceeds 30 seconds.
((maxtime = 20))
while [[ "$(date +%S)" != "00" ]]; do true; done
while true; do
# Start a background timer BEFORE the payload runs.
sleep 30 &
# Execute t...
What is the difference between join and merge in Pandas?
Suppose I have two DataFrames like so:
7 Answers
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Should MySQL have its timezone set to UTC?
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It seems that it does not matter what timezone is on the server as long as you have the time set right for the current timezone, know the timezone of the datetime columns that you store, and are aware of the issues with daylight savings time.
On the other h...
scala vs java, performance and memory? [closed]
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Easy! But, unless you're fairly familiar with how the collections work, what you might not realize is that this way of doing this created an extra intermediate array (with filter), and an extra object for every element of the array (with mapping.get, which returns an option). It also creates two...
How do I use raw_input in Python 3
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Starting with Python 3, raw_input() was renamed to input().
From What’s New In Python 3.0, Builtins section second item.
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Removing carriage return and new-line from the end of a string in c#
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@StuartWood: ...which is not what Avik asked for. He asked specifically for '\r' and '\n' and nothing else, not the space character ' ' for instance.
– RichieHindle
Mar 12 '13 at 13:11
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Detecting that the browser has no mouse and is touch-only
...ng preference)
Touch and mouse (ie hover events from Galaxy Note 2 pen)
What's worse, is that one can transition from some of these classes to others (plugs in a mouse, connects to keyboard), or a user may APPEAR to be on a normal laptop until they reach out and touch the screen.
You are correct...
When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
...d setContext(SecurityContext securityContext);
}
Now, my controller (or whatever POJO) would look like this:
public class FooController {
private final SecurityContextFacade securityContextFacade;
public FooController(SecurityContextFacade securityContextFacade) {
this.securityContextF...
Why does 'git commit' not save my changes?
... do the same thing)
Alternatively, if you want to be more selective about what you add to the commit, you use the git add command to add the appropriate files to the staging area, and git status to preview what is about to be added (remembering to pay attention to the wording used).
You can also f...
How to change legend title in ggplot
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what is the difference between guides and scale_fill_discrete
– Medhat
Dec 29 '15 at 13:02
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