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What is NODE_ENV and how to use it in Express?
...
var isDevelopment = environment === 'development'
if (isDevelopment) {
setUpMoreVerboseLogging()
}
You can alternatively using express' app.get('env') function, but note that this is NOT RECOMMENDED as it defaults to "development", which may result in development code being accidentally run in ...
How to read file contents into a variable in a batch file?
...d file contents into a variable:
for /f "delims=" %%x in (version.txt) do set Build=%%x
or
set /p Build=<version.txt
Both will act the same with only a single line in the file, for more lines the for variant will put the last line into the variable, while set /p will use the first.
Using t...
Update multiple rows in same query using PostgreSQL
...date more than one column, it's much more generalizable:
update test as t set
column_a = c.column_a
from (values
('123', 1),
('345', 2)
) as c(column_b, column_a)
where c.column_b = t.column_b;
You can add as many columns as you like:
update test as t set
column_a = c.column_a...
How to set initial size of std::vector?
...of items in the vector and I need fast access, so I don't use list. How to set initial size of vector (for example to be 20 000 places, so to avoid copy when I insert new)?
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...ent of the string are certainly permitted ("aaa" can exist and != "a").
A set is a collection of elements that cannot contain duplicates and has a non-definite order that may or may not change over time. Sets do not represent lists of things so much as they describe the extent of a certain selectio...
How do you set the text in an NSTextField?
I'm trying to set the text in an NSTextField, but the -setStringValue: and -setTitleWithMnemonic: methods are not working. Any ideas?
...
Abort makefile if variable not set
...I abort a make/makefile execution based on a makefile's variable not being set/valued?
5 Answers
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How to change the default collation of a table?
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To change the default character set and collation of a table including those of existing columns (note the convert to clause):
alter table <some_table> convert to character set utf8mb4 collate utf8mb4_unicode_ci;
Edited the answer, thanks to the pr...
What is the purpose of the “Prefer 32-bit” setting in Visual Studio and how does it actually work?
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Personally I think it is horrible they set this by default with no Tools setting to turn it off. Even worse, you can't search for it since not in the csproj files unless turned off! Probably added because of the Office Automation incompatibilities with CPUAny on a...
How to switch a user per task or set of tasks?
...ve privilege escalation. You can apply them to an entire play or playbook, set them in an included playbook, or set them for a particular task.
- name: checkout repo
git: repo=https://github.com/some/repo.git version=master dest={{ dst }}
become: yes
become_user: some_user
You can use becom...