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What is the use of “ref” for reference-type variables in C#?
I understand that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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How do I get Pyflakes to ignore a statement?
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If there only was a way to get this from some repo for EL6 :) - I guess I'll have to wrap this in a rpm myself.
– Kimvais
May 9 '12 at 4:54
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How to implement history.back() in angular.js
...u need to use a link function in your directive:
link: function(scope, element, attrs) {
element.on('click', function() {
$window.history.back();
});
}
See jsFiddle.
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Get fully qualified class name of an object in Python
For logging purposes I want to retrieve the fully qualified class name of a Python object. (With fully qualified I mean the class name including the package and module name.)
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Descending order by date filter in AngularJs
So the book comes from rest api and it has many readers attached. I want to get the 'recent' reader.
9 Answers
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Purge Kafka Topic
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Temporarily update the retention time on the topic to one second:
kafka-topics.sh --zookeeper <zkhost>:2181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-type ...
Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
Equivalent of Math.Min & Math.Max for Dates?
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There is no overload for DateTime values, but you can get the long value Ticks that is what the values contain, compare them and then create a new DateTime value from the result:
new DateTime(Math.Min(Date1.Ticks, Date2.Ticks))
(Note that the DateTime s...
jquery save json data object in cookie
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JSON is not allowed in cookies for Opera since ancient times my.opera.com/community/forums/… I also have this error. Even though if @cookie@ plugin use @encodeURIComponent@, pbug shouldn't appear.
– kirilloid
Jan 22 '13 at 10:33
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Testing whether a value is odd or even
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@Steve Yes, but JS has some special issues when value is not a number, or even if it's a number. Ex.: 0.1%2, NaN%2, []%2, etc. What you wrote in the answer, he already knows it.
– Alin Purcaru
Jun 2 '11 at 7:29
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