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How to prevent a background process from being stopped after closing SSH client in Linux
...by starting the process in background (with an ampersand at the end of the command) and redirecting stdout to a file.
20 An...
Best way to remove from NSMutableArray while iterating?
...e formulation should be faster. i.e. If you iterate through the array and compose a new array of objects to keep, instead of objects to discard. That may be true (although what about the memory and processing cost of allocating a new array, and discarding the old one?) but even if it's faster it m...
Use of “global” keyword in Python
...s not defined
While if you use the global statement, the variable will become available "outside" the scope of the function, effectively becoming a global variable.
def bob():
global me
me = "locally defined" # Defined locally but declared as global
print(me)
bob()
print(me) # ...
Group by multiple columns in dplyr, using string vector input
...oup_by_at(vars(one_of(columns))) %>%
summarize(Value = mean(value))
#compare plyr for reference
df2 <- plyr::ddply(data, columns, plyr::summarize, value=mean(value))
table(df1 == df2, useNA = 'ifany')
## TRUE
## 27
The output from your example question is as expected (see comparison to...
Error handling with node.js streams
... you can listen on, but I want to know some more details about arbitrarily complicated situations.
8 Answers
...
With Mercurial, how can I “compress” a series of changesets into one before pushing?
... I start working on a feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20 minutes later, I find there's a bug in this new feature, so I f...
Edit and Continue: “Changes are not allowed when…”
...
community wiki
5 revs, 2 users 71%nightcoder
...
Multi-line string with extra space (preserved indentation)
...redoc sounds more convenient for this purpose. It is used to send multiple commands to a command interpreter program like ex or cat
cat << EndOfMessage
This is line 1.
This is line 2.
Line 3.
EndOfMessage
The string after << indicates where to stop.
To send these lines to a file, use...
SQL Server String or binary data would be truncated
...
I had faced the same problem and had to compare all the column types and sizes of both the tables to fix the issue.
– Aziz Shaikh
Jun 17 '11 at 16:40
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Entity Framework 6 Code first Default value
... are right. This method only add default constraint at database level. For complete solution you also need to assign default value in constructor of entity or use property with backed field as shown in answer above
– gdbdable
Feb 18 '15 at 12:39
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