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Scala Doubles, and Precision
...u may use implicit classes:
import scala.math._
object ExtNumber extends App {
implicit class ExtendedDouble(n: Double) {
def rounded(x: Int) = {
val w = pow(10, x)
(n * w).toLong.toDouble / w
}
}
// usage
val a = 1.23456789
println(a.rounded(2))
}
...
How to import an excel file in to a MySQL database
...alues (e.g. ',', while using 'as defined in cell properties' separator for all other values. Best to stay away from CSV.
– afk5min
Apr 12 '14 at 15:14
...
How do I change the language of moment.js?
...locale('es')
console.log(march.format('MMMM')) // 'Marzo'
In summation, calling locale on the global moment sets the locale for all future moment instances, but does not return an instance of moment. Calling locale on an instance, sets it for that instance AND returns that instance.
Also, as Shiv...
why windows 7 task scheduler task fails with error 2147942667
...ks fail to run if the path in "Start in (Optional)" field has quotes
Basically, edit your scheduled task and take the Quotes out of the Start In field:
Open your Scheduled Task
Switch to "Actions" tab
Open your Action
Remove Quotes (") from the field "Start in (optional)"
Save and close all open ...
How to change title of Activity in Android?
...d:label property of the launcher activity will also change the name of the application on the phone's applications screen. Your application's icon will have "My Activity Title" caption.
– Doron Zehavi
Apr 7 '14 at 11:58
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What are the best practices for SQLite on Android?
...
Inserts, updates, deletes and reads are generally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn'...
How to pass parameters to a modal?
...
+1 Since this allows for passing data without having to define a controller for the modal. BTW you can just do $scope.$new(true) to create a new isolated scope without the need to inject $rootScope.
– Santosh
...
How to change the color of an svg element?
I want to use this technique http://css-tricks.com/svg-fallbacks/ and change the svg color but so far I haven't been able to do so. I put this in the css but my image is always black, no matter what. My code:
...
Mixed mode assembly is built against version ‘v2.0.50727′ of the runtime
...
Try to use this exact startup tag in your app.config under configuration node
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
<requiredRuntime version="v4.0.20506" />
...
How to create a memory leak in Java?
...a thread pool to leak even faster).
The thread loads a class via an (optionally custom) ClassLoader.
The class allocates a large chunk of memory (e.g. new byte[1000000]), stores a strong reference to it in a static field, and then stores a reference to itself in a ThreadLocal. Allocating the extra ...