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Maximum length of the textual representation of an IPv6 address?
...o store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER["REMOTE...
IntelliJ IDEA shows errors when using Spring's @Autowired annotation
IntelliJ IDEA is showing errors when I use Spring's @Autowired annotation in the class, but the class is functioning without any problem.
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List of installed gems?
Is there a Ruby method I can call to get the list of installed gems?
11 Answers
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JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
...ava installer is supposed to uncompress them. If you are experiencing this error, apparently that didn't happen.
You need to manually run unpack200 on all .pack files in the JRE's lib/ and lib/ext/ folders.
Windows
To unpack one .pack file (for example rt.pack), run:
"%JAVA_HOME%\bin\unpack200" ...
How can I make pandas dataframe column headers all lowercase?
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df.columns = df.columns.str.lower()
is the easiest but will give an error if some headers are numeric
if you have numeric headers then use this:
df.columns = [str(x).lower() for x in df.columns]
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What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
...xes.
– Mark Rajcok
Jan 12 '13 at 19:05
15
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How to upgrade rubygems
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Respectively with shellcheck errors fixed: gem update "$(gem outdated | cut -d ' ' -f 1)";.
– BernhardWebstudio
Oct 19 '19 at 9:38
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How to scroll to top of long ScrollView layout?
For part of my app, the user is presented with a list of names and is asked to group them as they see fit.
15 Answers
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What is the worst real-world macros/pre-processor abuse you've ever come across?
... to do a quick ten pushups. He explained this last one as "Compiler found error in code. This is punishment".
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edited May 24 '10 at 20:05
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Writing files in Node.js
...e, and I tried changing the file path to "/home/", but I got the following error: { [Error: EACCES, open '/home/test.txt'] errno: 3, code: 'EACCES', path: '/home/test.txt' } How can I modify this script so that it will work outside of /tmp?
– Anderson Green
Se...