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Retrieving the inherited attribute names/values using Java Reflection
...ues of ChildObj, including the inherited attributes too, using Java reflection mechanism?
14 Answers
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Get free disk space
Given each of the inputs below, I'd like to get free space on that location. Something like
13 Answers
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How to set a Django model field's default value to a function call / callable (e.g., a date relative
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You've got your definitions of auto_now and auto_now_add mixed up, it's the other way round.
– Michael Bates
Jan 25 '16 at 2:29
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How to erase the file contents of text file in Python?
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Not a complete answer more of an extension to ondra's answer
When using truncate() ( my preferred method ) make sure your cursor is at the required position.
When a new file is opened for reading - open('FILE_NAME','r') it's cursor is at 0 by default.
But if you ...
Persistent invalid graphics state error when using ggplot2
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I found this to occur when you mix ggplot charts with plot charts in the same session. Using the 'dev.off' solution suggested by Paul solves the issue.
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Why is the clone() method protected in java.lang.Object?
... Josh Bloch's Effective Java:
"The Cloneable interface was intended as a mixin interface for objects to advertise that they permit cloning. Unfortunately it fails to serve this purpose ... This is a highly atypical use of interfaces and not one to be emulated ... In order for implementing the inte...
How do I import other TypeScript files?
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export {AClass, valueZero} // pick the one you want to export
}
Or even mix both together
{
class AClass(){} // not exported yet
export valueZero = 0; // will be available for import
export {AClass} // add AClass to the export list
}
For the import you have 2 options, first you pick again what...
Xcode - ld: library not found for -lPods
I get these errors when I try to build an iOS application.
22 Answers
22
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How to use a keypress event in AngularJS?
...to add a directive, like this:
Javascript:
app.directive('myEnter', function () {
return function (scope, element, attrs) {
element.bind("keydown keypress", function (event) {
if(event.which === 13) {
scope.$apply(function (){
scope.$eval...
What's the best way of implementing a thread-safe Dictionary?
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But now, seeing as you're having to write externally locking code, you're mixing up internal and external synchronisation, which always leads to problems such as unclear code and deadlocks. So ultimately you're probably better to either:
Use a normal Dictionary<TKey, TValue> and synchronize...