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Installing Ruby Gem in Windows
...ubyInstaller: http://rubyinstaller.org/downloads/
Check your ruby version: Start - Run - type in cmd to open a windows console
Type in ruby -v
You will get something like that: ruby 2.0.0p353 (2013-11-22) [i386-mingw32]
For Ruby 2.4 or later, run the extra installation at the end to install the De...
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?
...
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...
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]
...
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
...
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...
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...
How to create PDFs in an Android app? [closed]
...ment document = new PrintedPdfDocument(context,
printAttributes);
// start a page
Page page = document.startPage(0);
// draw something on the page
View content = getContentView();
content.draw(page.getCanvas());
// finish the page
document.finishPage(page);
. . .
// add more pages
. . .
// w...