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Java Multiple Inheritance
...classes, although those are not so natural to use in Java (you have to use converter methods and so on), this intro might be useful to get the idea: typeclassopedia.bitbucket.org
– Gábor Bakos
Feb 17 '14 at 10:41
...
What is the difference between Scala's case class and class?
...on through cloning:
val treeC = treeA.copy(left = treeB.left)
// Pretty printing:
println("Tree A: "+treeA)
println("Tree B: "+treeB)
println("Tree C: "+treeC)
// Comparison:
println("Tree A == Tree B: %s" format (treeA == treeB).toString)
println("Tree B == Tree C: %s" format (treeB == treeC).toS...
Accessing nested JavaScript objects and arays by string path
...ect.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i < n; ++i) {
var k = a[i];
if (k in o) {
...
Tab Vs Space preferences in Vim
...set shiftwidth=4 "tabs are 4 spaces wide (default = 8)
set expandtab "Convert tabs to spaces
This is how my .vimrc is setup.
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the RotationDetector.aix extension as described in part 2 below using the extension test send (2) may need to be rebuilt as the system ...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the RotationDetector.aix extension as described in part 2 below using the extension test send (2) may need to be rebuilt as the system ...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the RotationDetector.aix extension as described in part 2 below using the extension test send (2) may need to be rebuilt as the system ...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ires the App Inventor extensions capability, which is not yet incorporated into the App Inventor release. But you can try some ofary AI2 server.
You can implement the RotationDetector.aix extension as described in part 2 below using the extension test send (2) may need to be rebuilt as the system ...
Checking if a key exists in a JavaScript object?
... if a property is present in a javascript object:
!!obj.theProperty
Will convert value to bool. returns true for all but the false value
'theProperty' in obj
Will return true if the property exists, no matter its value (even empty)
obj.hasOwnProperty('theProperty')
Does not check the prototype cha...
What is the use of hashCode in Java?
... distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java programming language.)
...