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jQuery: checking if the value of a field is null (empty)
...ue because a 'disabled' option is selected. stackoverflow.com/questions/5805059/…
– Sygmoral
May 4 '19 at 1:51
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grepping using the “|” alternative operator
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50
By default, grep treats the typical special characters as normal characters unless they are esc...
Why no generics in Go?
...assertions
– tbone
Aug 25 '13 at 20:50
2
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How to check if object (variable) is defined in R?
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answered Feb 20 '12 at 21:50
Gavin SimpsonGavin Simpson
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SQL Add foreign key to existing column
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marc_smarc_s
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Best way to work with transactions in MS SQL Server Management Studio
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answered Jun 30 '16 at 15:50
HLGEMHLGEM
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How do I select an element in jQuery by using a variable for the ID?
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edited Jan 10 '12 at 15:50
answered Apr 13 '09 at 14:31
J...
Easiest way to check for an index or a key in an array?
...command.
array=([12]="red" [51]="black" [129]="blue")
for i in 10 12 30 {50..52} {128..131};do
if [ -v array[i] ];then
echo "Variable 'array[$i]' is defined"
else
echo "Variable 'array[$i]' not exist"
fi
done
Variable 'array[10]' not exist
Variable 'array[12]' is define...
Hibernate: hbm2ddl.auto=update in production?
...columns have changed. Examples (using MySQL):
String with @Column(length=50) ==> varchar(50)
changed to
String with @Column(length=100) ==> still varchar(50), not changed to varchar(100)
@Temporal(TemporalType.TIMESTAMP,TIME,DATE) will not update the DB columns if changed
There are proba...
Workflow for statistical analysis and report writing
...g script
– kpierce8
Oct 10 '09 at 3:50
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LCFD: Least Commonly Fouled-up Data
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