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Converting JSON data to Java object
...rror can not deserialize instance of java.util.HashSet out of START_OBJECT token
– Dipen Chawla
May 15 '19 at 8:24
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Node.js setting up environment specific configs to be used with everyauth
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Example: on my machine the .env file is this:
NODE_ENV=dev
TWITTER_AUTH_TOKEN=something-needed-for-api-calls
My local .env overrides any environment variables. But on the staging or production servers (maybe they're on heroku.com) the environment variables are pre-set to stage NODE_ENV=stage or...
What is the use case of noop [:] in bash?
...causes bash to give a syntax error:
line 4: syntax error near unexpected token `fi'
line 4: `fi'
Bash can't have empty blocks (WTF). So you add a no-op:
if [ "$foo" != "1" ]
then
#echo Success
:
fi
or you can use the no-op to comment out the lines:
if [ "$foo" != "1" ]
then
: e...
INSERT IF NOT EXISTS ELSE UPDATE?
... your select needs at least WHERE true to solve parser ambiguity about the token ON with the join syntax.
Be warned that INSERT OR REPLACE... will delete the record before inserting a new one if it has to replace, which could be bad if you have foreign key cascades or other delete triggers.
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Sql Server string to date conversion
...ptional argument - it is based on .Net's format, so most if not all of the token formats you'd expect to see will be there.
DECLARE @d DATETIME = '2008-10-13 18:45:19';
-- returns Oct-13/2008 18:45:19:
SELECT FORMAT(@d, N'MMM-dd/yyyy HH:mm:ss');
-- returns NULL if the conversion fails:
SELECT TRY...
Why are all fields in an interface implicitly static and final?
...constants, or even immutable. You can define e.g.
interface I {
String TOKEN = SomeOtherClass.heavyComputation();
JButton BAD_IDEA = new JButton("hello");
}
(Beware that doing this inside an annotation definition can confuse javac, relating to the fact that the above actually compiles to a ...
How to loop through files matching wildcard in batch file
... good way to pass commands into f.in and f.out would be to...
for /F %%D "tokens=*" in (dont_pass_through_these.txt) do (
for /F %%E in (%%D) do (
start /wait %%E
)
)
A link to all the Windows XP commands:link
I apologize if I did not answer this correctly. The question was very hard for me to r...
What is an alternative to execfile in Python 3?
...py uses a character encoding different from locale.getpreferredencoding(). tokenize.open() could be used instead.
– jfs
Mar 23 '16 at 14:39
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Where is my .vimrc file?
... I take back the following: -bash: syntax error near unexpected token '$MYVIMRC'
– Yannis Dran
Jan 30 '14 at 2:37
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How to enter a multi-line command
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And don't forget to mention that some other tokens also act as line continuators e.g. | and {.
– Keith Hill
Jul 13 '10 at 14:40
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