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CRON job to run on the last day of the month
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15 Answers
15
Active
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What is the Scala identifier “implicitly”?
... a type with selection defined, or equivalent implicit methods.
scala> 1.min(2) // Int doesn't have min defined, where did that come from?
res21: Int = 1
scala> implicitly[Int => { def min(i: Int): Any }]
res22: (Int) => AnyRef{def min(i: Int): Any} =...
Retain precision with double in Java
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153
As others have mentioned, you'll probably want to use the BigDecimal class, if you want to hav...
Does Python have a ternary conditional operator?
...ession:
>>> pass if False else x = 3
File "<stdin>", line 1
pass if False else x = 3
^
SyntaxError: invalid syntax
You can, however, use conditional expressions to assign a variable like so:
x = a if True else b
Think of the conditional expression as switching betwee...
Drop data frame columns by name
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You can use a simple list of names :
DF <- data.frame(
x=1:10,
y=10:1,
z=rep(5,10),
a=11:20
)
drops <- c("x","z")
DF[ , !(names(DF) %in% drops)]
Or, alternatively, you can make a list of those to keep and refer to them by name :
keeps <- c("y", "a")
DF[keeps]
EDIT ...
How to draw polygons on an HTML5 canvas?
...
165
Create a path with moveTo and lineTo (live demo):
var ctx = canvas.getContext('2d');
ctx.fill...
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of
...
156
I had the exact same problem.
[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:...
What are 'get' and 'set' in Swift?
...e variable from another object, it looks like this:
myTriangle.perimeter = 100
Which invokes the code in the set{} block:
set {
sideLength = newValue / 3.0
}
And so it's like if the class that's setting the variable had done this:
myTriangle.sideLength = 100/3.0
It's really just for convenien...
How can I calculate the time between 2 Dates in typescript
...
160
Use the getTime method to get the time in total milliseconds since 1970-01-01, and subtract th...
Why use the SQL Server 2008 geography data type?
...te Facility GetNearestFacilityToJobsite(DbGeography jobsite)
{
var q1 = from f in context.Facilities
let distance = f.Geocode.Distance(jobsite)
where distance < 500 * 1609.344
orderby distance
select f;
return q1....