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Controlling a USB power supply (on/off) with Linux
... According to this post, without special hardware it isn't possible? blog.andrew.net.au/2009/01/17
– NoBugs
Dec 31 '11 at 21:09
...
Getting the ID of the element that fired an event
... You rock! I would think it would still have the difference between (this) and (event.target) -- being object you bound the event to vs. the object that received the event.
– Hafthor
Sep 8 '08 at 17:12
...
ggplot2 plot without axes, legends, etc
...at, aes(x=x, y=y)) +
geom_point() +
scale_x_continuous(expand=c(0,0)) +
scale_y_continuous(expand=c(0,0))
p + theme(axis.line=element_blank(),axis.text.x=element_blank(),
axis.text.y=element_blank(),axis.ticks=element_blank(),
axis.title.x=element_bl...
SQL Server 2005 How Create a Unique Constraint?
...
The SQL command is:
ALTER TABLE <tablename> ADD CONSTRAINT
<constraintname> UNIQUE NONCLUSTERED
(
<columnname>
)
See the full syntax here.
If you want to do it from a Database Dia...
How to parse Excel (XLS) file in Javascript/HTML5
...ers with it. I need to read xls file row-wise, read data in every column and convert it to JSON.
11 Answers
...
Check if one IEnumerable contains all elements of another IEnumerable
...
There is no "fast way" to do this unless you track and maintain some state that determines whether all values in one collection are contained in another. If you only have IEnumerable<T> to work against, I would use Intersect.
var allOfList1IsInList2 = list1.Intersect(l...
How to execute a java .class from the command line
...classpath ( where java looks for .class definitions )
If that's the case and listing the contents of your dir displays:
Echo.java
Echo.class
Then any of this may work:
java -cp . Echo "hello"
or
SET CLASSPATH=%CLASSPATH;.
java Echo "hello"
And later as Fredrik points out you'll get an...
Sequelize Unknown column '*.createdAt' in 'field list'
...ats not how a sequelize model looks anymore. after the field list is class and instancemethods
– Travis Delly
May 13 '17 at 5:01
...
How to test if one java class extends another at runtime?
...e will return true if the class/instance is a member of the type hierarchy and are not restrictive to direct superclass/subclass relationships. For example:
// if A.class extends B.class, and B.class extends C.class
C.class.isAssignableFrom(A.class); // evaluates to true
// ...and...
new A() instan...
Pushing app to heroku problem
I am trying to push my app to heroku and I get the following message:
4 Answers
4
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