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Insert a row to pandas dataframe
... not series. In your case, since you want the new row to be "on top" (with starting id), and there is no function pd.prepend(), I first create the new dataframe and then append your old one.
ignore_index will ignore the old ongoing index in your dataframe and ensure that the first row actually star...
How to check if a String contains only ASCII?
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What is that regex? I know that $ is end of string, ^ is start, never heard of either of \\A \\p \\z, could you please attach the reference to javadoc?
– deathangel908
Feb 1 '19 at 9:41
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Recursively list files in Java
...to include the namespace stuff or even datatype stuff making the example a starting point on a voyage of discovery. Here this example is ready-to-run. Thanks.
– barrypicker
Jul 14 '19 at 19:22
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How to get body of a POST in php?
...$_POST is that the request is not POST, or not POST anymore... It may have started out as post, but encountered a 301 or 302 redirect somewhere, which is switched to GET!
Inspect $_SERVER['REQUEST_METHOD'] to check if this is the case.
See https://stackoverflow.com/a/19422232/109787 for a good dis...
How can I repeat a character in Bash?
...ay up to around 100, it's worth going with the Bash-only solutions, as the startup cost of external utilities matters, especially Perl's.
Pragmatically speaking, however, if you only need one instance of repeating characters, all existing solutions may be fine.
With large repeat counts, use exte...
I want to get Year, Month, Day, etc from Java Date to compare with Gregorian Calendar date in Java.
...MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
// etc.
Beware, months start at 0, not 1.
Edit: Since Java 8 it's better to use java.time.LocalDate rather than java.util.Calendar. See this answer for how to do it.
share...
Tool to generate JSON schema from JSON data [closed]
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An easy and handy place to start. But note reported issues with jsonschema.net identified elsewhere on this page, and the reasons discussed for wanting an offline, or at least API-accessible, tool to include in development workflows, allow updating of ...
Failed to import new Gradle project: failed to find Build Tools revision *.0.0
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After spending a few hours: I restarted the Android SDK Manager and at this time I noticed that I got Android SDK Platform-tools (upgrade) and Android SDK Build-tools (new).
After installing those, I was finally able to fully compile my project.
Note: The...
Why does struct alignment depend on whether a field type is primitive or user-defined?
...f we add to 0000000003c22d18 + 8 bytes of string ref we will end up at the start of the first Int wrapper where the value actually point to the address we are at.
Now we can see that each value is an object reference again lets confirm that by peeking 0000000003c22d20.
0:004> !do 0000000003c22d...
Scoping in Python 'for' loops
... want the total count in the end:
for count, x in enumerate(someiterator, start=1):
dosomething(count, x)
print "I did something {0} times".format(count)
Is this necessary? No. But, it sure is convenient.
Another thing to be aware of: in Python 2, variables in list comprehensions are leaked...